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Seachem PhosGuard Phosphate/Silicate Control - 68 oz
Seachem PhosGuard Phosphate/Silicate Control - 68 oz ('116018807)

SeaChem PhosGuard rapidly removes phosphate and silicate from marine and freshwater aquaria. It is not recommended for phosphate buffered freshwater. SeaChem PhosGuard is highly porous for high capacity and bead-shaped for optimum water flow.

  • Removes phosphate and silicate from fresh and saltwater systems
  • Highly porous and bean-shaped for maximum absorption and water flow
  • Causes a decline in hair algae and enhanced coral growth

SeaChem Phosguard outperforms all competing products. PhosGuard is a high capacity and high efficiency filtration product for removing phosphates and silicates from marine or fresh water aquaria. Unlike competing products, PhosGuard is bead-shaped for optimum flow characteristics and has an exceptional porosity for enhanced capacity. PhosGuard has a working capacity to remove 20 to 60 mg/l phosphate in 100 gallons with a similar impact on silicates. It may be used continuously or intermittently, and will not release removed phosphate. PhosGuard will cause a decline in hair algae and enhance coral growth. Each liter treats up to 300 gallons. Marine or freshwater use.

Instructions: Use 1 cup for every 75 gallons. Leave product in place for 4 days, then test phosphate and silicate.

Seachem PhosGuard Phosphate/Silicate Control
$52.16
Seachem Reef Builder - 2.2 lbs
Seachem Reef Builder - 2.2 lbs ('116036702)

Seachem Reef Builder supplies the carbonates and calcium which are essential for all coral growth. It also raises carbonate alkalinity without immediately impacting water pH, and will stabilize aquarium water at pH 8.3 with long term use.

  • Raises carbonate alkalinity (KH) with minimal pH impact
  • Provides a blend of carbonate sources that will not lower pH
  • Will not deplete calcium, magnesium, or strontium
  • Promotes healthy coral growth

If either calcium or carbonates become deficient, coral growth will cease, followed by a rapid decline in coral health. Used as directed, Seachem Reef Builder will not deplete calcium, magnesium, or strontium which usually tend to precipitate with increasing alkalinity.

Seachem Reef Builder and Reef Buffer may be used together: use Reef Builder to raise carbonate alkalinity without affecting pH, and use Reef Buffer to raise carbonate alkalinity and pH. As a general rule, reef alkalinity should be maintained at 3–5 meq/L (8–14 dKH); alkalinity should not be allowed to fall below 2 meq/L.

Directions:
BEGINNER: Use 3 g (1/2 level teaspoon) per 150 L (40 gallons) twice a week. Dissolve in at least 250 ml (1 cup) of freshwater. Check alkalinity every 2 weeks and adjust amount or frequency accordingly. For precise dosing, use the Seachem Digital Spoon Scale.

ADVANCED: Check alkalinity, then follow addition regimen above until alkalinity is adjusted to 4–5 meq/L. Each 3 g/150 L will raise alkalinity by about 0.25 meq/L. Quantity or frequency can be adjusted, but do not exceed 12 g/150 L per day. Thereafter, use as required to maintain alkalinity.

EXPERT: After determining the alkalinity consumption rate, set up a continuous drip system. Use the following formula to determine how much to add to your top–off water: m=0.08va (m=grams to add to top off water, v=volume of tank in liters, a=amount to raise alkalinity in meq/L). For example, if you want to raise your alkalinity by 1 meq/L in a 200 liter tank, then you would add 0.08x200x1=16 g into the top–off water. [For reference: 1 gallon=3.8 liters, 6 g=1 teaspoon].

DO NOT OVERDOSE: Excess alkalinity may enhance the loss of calcium, magnesium, and strontium. Do not directly mix with any calcium, magnesium, or strontium supplement. Best if calcium and carbonate additives are added on alternate days or at least 30 minutes apart.

Seachem Reef Builder
$30.34
Seachem Reef Builder - 10.6 oz
Seachem Reef Builder - 10.6 oz ('116036603)

Seachem Reef Builder supplies the carbonates and calcium which are essential for all coral growth. It also raises carbonate alkalinity without immediately impacting water pH, and will stabilize aquarium water at pH 8.3 with long term use.

  • Raises carbonate alkalinity (KH) with minimal pH impact
  • Provides a blend of carbonate sources that will not lower pH
  • Will not deplete calcium, magnesium, or strontium
  • Promotes healthy coral growth

If either calcium or carbonates become deficient, coral growth will cease, followed by a rapid decline in coral health. Used as directed, Seachem Reef Builder will not deplete calcium, magnesium, or strontium which usually tend to precipitate with increasing alkalinity.

Seachem Reef Builder and Reef Buffer may be used together: use Reef Builder to raise carbonate alkalinity without affecting pH, and use Reef Buffer to raise carbonate alkalinity and pH. As a general rule, reef alkalinity should be maintained at 3–5 meq/L (8–14 dKH); alkalinity should not be allowed to fall below 2 meq/L.

Directions:
BEGINNER: Use 3 g (1/2 level teaspoon) per 150 L (40 gallons) twice a week. Dissolve in at least 250 ml (1 cup) of freshwater. Check alkalinity every 2 weeks and adjust amount or frequency accordingly. For precise dosing, use the Seachem Digital Spoon Scale.

ADVANCED: Check alkalinity, then follow addition regimen above until alkalinity is adjusted to 4–5 meq/L. Each 3 g/150 L will raise alkalinity by about 0.25 meq/L. Quantity or frequency can be adjusted, but do not exceed 12 g/150 L per day. Thereafter, use as required to maintain alkalinity.

EXPERT: After determining the alkalinity consumption rate, set up a continuous drip system. Use the following formula to determine how much to add to your top–off water: m=0.08va (m=grams to add to top off water, v=volume of tank in liters, a=amount to raise alkalinity in meq/L). For example, if you want to raise your alkalinity by 1 meq/L in a 200 liter tank, then you would add 0.08x200x1=16 g into the top–off water. [For reference: 1 gallon=3.8 liters, 6 g=1 teaspoon].

DO NOT OVERDOSE: Excess alkalinity may enhance the loss of calcium, magnesium, and strontium. Do not directly mix with any calcium, magnesium, or strontium supplement. Best if calcium and carbonate additives are added on alternate days or at least 30 minutes apart.

Seachem Reef Builder
$18.58
Seachem Reef Builder - 1.3 lbs
Seachem Reef Builder - 1.3 lbs ('116036306)

Seachem Reef Builder supplies the carbonates and calcium which are essential for all coral growth. It also raises carbonate alkalinity without immediately impacting water pH, and will stabilize aquarium water at pH 8.3 with long term use.

  • Raises carbonate alkalinity (KH) with minimal pH impact
  • Provides a blend of carbonate sources that will not lower pH
  • Will not deplete calcium, magnesium, or strontium
  • Promotes healthy coral growth

If either calcium or carbonates become deficient, coral growth will cease, followed by a rapid decline in coral health. Used as directed, Seachem Reef Builder will not deplete calcium, magnesium, or strontium which usually tend to precipitate with increasing alkalinity.

Seachem Reef Builder and Reef Buffer may be used together: use Reef Builder to raise carbonate alkalinity without affecting pH, and use Reef Buffer to raise carbonate alkalinity and pH. As a general rule, reef alkalinity should be maintained at 3–5 meq/L (8–14 dKH); alkalinity should not be allowed to fall below 2 meq/L.

Directions:
BEGINNER: Use 3 g (1/2 level teaspoon) per 150 L (40 gallons) twice a week. Dissolve in at least 250 ml (1 cup) of freshwater. Check alkalinity every 2 weeks and adjust amount or frequency accordingly. For precise dosing, use the Seachem Digital Spoon Scale.

ADVANCED: Check alkalinity, then follow addition regimen above until alkalinity is adjusted to 4–5 meq/L. Each 3 g/150 L will raise alkalinity by about 0.25 meq/L. Quantity or frequency can be adjusted, but do not exceed 12 g/150 L per day. Thereafter, use as required to maintain alkalinity.

EXPERT: After determining the alkalinity consumption rate, set up a continuous drip system. Use the following formula to determine how much to add to your top–off water: m=0.08va (m=grams to add to top off water, v=volume of tank in liters, a=amount to raise alkalinity in meq/L). For example, if you want to raise your alkalinity by 1 meq/L in a 200 liter tank, then you would add 0.08x200x1=16 g into the top–off water. [For reference: 1 gallon=3.8 liters, 6 g=1 teaspoon].

DO NOT OVERDOSE: Excess alkalinity may enhance the loss of calcium, magnesium, and strontium. Do not directly mix with any calcium, magnesium, or strontium supplement. Best if calcium and carbonate additives are added on alternate days or at least 30 minutes apart.

Seachem Reef Builder
$24.90
Seachem Reef Calcium - 8.5 oz
Seachem Reef Calcium - 8.5 oz ('116035606)

Reef Calcium is a concentrated (50,000 mg/L) bioavailable polygluconate complexed calcium intended to maintain calcium in the reef aquarium without altering pH. Polygluconate complexation confers several benefits: it increases the bioavailability of the calcium, it provides a rich source of metabolic energy to help maintain peak coral growth, and it prevents calcium precipitation/alkalinity depletion. Polygluconate contains no nitrogen or phosphorous, thus it is biologically impossible for it to lead to algae growth in a properly maintained reef system.

  • Maintains calcium
  • Accelerates coral growth
  • Will not alter pH

Reef Calcium may be used alone to maintain calcium but will provide enhanced levels of coral growth when used in conjunction with an ionic calcium supplement. Reef Calcium is intended to maintain calcium levels; if calcium becomes seriously depleted one should either perform a water change or use an ionic calcium supplement to restore the depleted level of calcium.

Seachem Reef Calcium
$9.00
Seachem Reef Calcium - 16.9 oz
Seachem Reef Calcium - 16.9 oz ('116035309)

Reef Calcium is a concentrated (50,000 mg/L) bioavailable polygluconate complexed calcium intended to maintain calcium in the reef aquarium without altering pH. Additionally, polygluconate contains no nitrogen or phosphorous, thus it is biologically impossible for it to lead to algae growth in a properly maintained reef system. Reef Calcium utilizes a chained organic calcium rather than an ionic calcium. When a coral absorbs a molecule into its tissue, it uses the same amount of energy regardless of molecular size. However, charged molecules require more energy. When an uncharged molecule of Reef Calcium is absorbed, the coral acquires multiple calcium atoms as well as an easily metabolized carbohydrate with less energy expended than it uses for ionic calcium uptake. Therefore, at lower calcium levels, corals can still take in as much calcium through our organic chains as they would at much higher levels of ionic calcium.

  • Increases the bioavailability of the calcium
  • Provides a rich source of metabolic energy
  • Maintains peak coral growth
  • Prevents calcium precipitation/alkalinity depletion
  • Will not lead to algae growth in a properly maintained reef system

Directions: Add 1 capful (5 mL) per 80 L (20 US gallons) twice a week. You can increase the amount or frequency based on growth response but do not exceed 3 capfuls per 80 L (20 gallons) per day. Each capful will raise calcium by about 3 mg/L.

Seachem Reef Calcium
$23.26
Seachem Marine Buffer - 2.2 lbs
Seachem Marine Buffer - 2.2 lbs ('116034708)

Seachem Marine Buffer will safely raise the pH of saltwater to 8.3, and will not raise the pH above 8.3 even if overdosed. Marine Buffer is a blended product, and contains sodium, magnesium, calcium, strontium, and potassium salts to provide effective results.

  • Safely raises and maintains saltwater pH to 8.3
  • More stable than sodium bicarbonate or sodium bicarbonate substitutes
  • Will not raise pH above 8.3 even if inadvertently overdosed

Seachem Marine Buffer is not just sodium bicarbonate or sodium carbonate (commonly sold as a substitute), as these products can raise pH to dangerous levels if not used properly. Instead it includes a variety of minerals and potassium salts of carbonate, bicarbonate, chloride, sulfate, and borate for safe, accurate dosing.

Directions: Add 5g (1 level teaspoon) for each 20 gallons (80 L). Dissolve in at least one cup of freshwater. This dose will also raise alkalinity by about 1 meq/L. Add daily until pH stabilizes at 8.3. This will take from a day to a week, depending on original pH and alkalinity. Thereafter, use biweekly or monthly to maintain a pH of 8.3. If this practice is not adequate, then overstocking, overfeeding, or other poor management practice should be sought as a likely cause. In ionically balanced marine water, Marine Buffer produces little precipitate or cloudiness. If an extensive precipitate forms upon addition of Marine Buffer that does not dissolve within about 15 minutes, then poor ionic balance was present. A water change should be initiated when convenient before further use of the product. Effectiveness improves with continued use. Do not directly mix with any calcium, magnesium, or strontium supplement.

Note: Product is sold by weight, not volume. Contents may settle in shipment.

Seachem Marine Buffer
$36.98
Seachem Marine Buffer - 9 oz
Seachem Marine Buffer - 9 oz ('116034609)

Seachem Marine Buffer will safely raise the pH of saltwater to 8.3, and will not raise the pH above 8.3 even if overdosed. Marine Buffer is a blended product, and contains sodium, magnesium, calcium, strontium, and potassium salts to provide effective results.

  • Safely raises and maintains saltwater pH to 8.3
  • More stable than sodium bicarbonate or sodium bicarbonate substitutes
  • Will not raise pH above 8.3 even if inadvertently overdosed

Seachem Marine Buffer is not just sodium bicarbonate or sodium carbonate (commonly sold as a substitute), as these products can raise pH to dangerous levels if not used properly. Instead it includes a variety of minerals and potassium salts of carbonate, bicarbonate, chloride, sulfate, and borate for safe, accurate dosing.

Directions: Add 5g (1 level teaspoon) for each 20 gallons (80 L). Dissolve in at least one cup of freshwater. This dose will also raise alkalinity by about 1 meq/L. Add daily until pH stabilizes at 8.3. This will take from a day to a week, depending on original pH and alkalinity. Thereafter, use biweekly or monthly to maintain a pH of 8.3. If this practice is not adequate, then overstocking, overfeeding, or other poor management practice should be sought as a likely cause. In ionically balanced marine water, Marine Buffer produces little precipitate or cloudiness. If an extensive precipitate forms upon addition of Marine Buffer that does not dissolve within about 15 minutes, then poor ionic balance was present. A water change should be initiated when convenient before further use of the product. Effectiveness improves with continued use. Do not directly mix with any calcium, magnesium, or strontium supplement.

Note: Product is sold by weight, not volume. Contents may settle in shipment.

Seachem Marine Buffer
$10.06
Seachem Marine Buffer - 1.1 lbs
Seachem Marine Buffer - 1.1 lbs ('116034302)

Seachem Marine Buffer will safely raise the pH of saltwater to 8.3, and will not raise the pH above 8.3 even if overdosed. Marine Buffer is a blended product, and contains sodium, magnesium, calcium, strontium, and potassium salts to provide effective results.

  • Safely raises and maintains saltwater pH to 8.3
  • More stable than sodium bicarbonate or sodium bicarbonate substitutes
  • Will not raise pH above 8.3 even if inadvertently overdosed

Seachem Marine Buffer is not just sodium bicarbonate or sodium carbonate (commonly sold as a substitute), as these products can raise pH to dangerous levels if not used properly. Instead it includes a variety of minerals and potassium salts of carbonate, bicarbonate, chloride, sulfate, and borate for safe, accurate dosing.

Directions: Add 5g (1 level teaspoon) for each 20 gallons (80 L). Dissolve in at least one cup of freshwater. This dose will also raise alkalinity by about 1 meq/L. Add daily until pH stabilizes at 8.3. This will take from a day to a week, depending on original pH and alkalinity. Thereafter, use biweekly or monthly to maintain a pH of 8.3. If this practice is not adequate, then overstocking, overfeeding, or other poor management practice should be sought as a likely cause. In ionically balanced marine water, Marine Buffer produces little precipitate or cloudiness. If an extensive precipitate forms upon addition of Marine Buffer that does not dissolve within about 15 minutes, then poor ionic balance was present. A water change should be initiated when convenient before further use of the product. Effectiveness improves with continued use. Do not directly mix with any calcium, magnesium, or strontium supplement.

Note: Product is sold by weight, not volume. Contents may settle in shipment.

Seachem Marine Buffer
$24.90
Seachem Reef Complete - Raises Calcium Levels - 8.5 oz
Seachem Reef Complete - Raises Calcium Levels - 8.5 oz ('116033602)

Reef Complete is a concentrated (160,000 mg/L) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater without affecting pH. Calcium and carbonates are essential to all coral growth. If either becomes deficient, coral growth will cease, followed by a rapid decline in coral health. To prevent this you must provide calcium (Reef complete) and carbonates (Reef Builder or Reef Carbonate) Reef Complete also includes magnesium and strontium in amounts proportionate to typical utilization ratios (100:5:0.1, Ca:Mg: Sr). This allows one to maintain these two important elements while maintaining calcium. Reef Complete is a blended product. It is not simply calcium chloride. Commercially available calcium chloride contains ammonia. Unlike other ionic calcium supplements, Reef Complete is blended to a higher pH to force the ammonia to gas off into the atmosphere. Also, Reef Complete is more concentrated than any other liquid product on the market. Reef Complete contains 160,000 ppm calcium.

  • Liquid Ionic Calcium Source
  • Maintains Magnesium & Strontium
  • Raises Calcium
  • Essential to Coral Growth
  • Will Not Affect pH

INSTRUCTIONS: Beginner: Use 1 capful (5 mL) per 80 L (20 US gallons) twice a week. Check calcium every 2 weeks and adjust the amount or frequency accordingly

Advanced: Check calcium level (use Reef Status: Calcium to measure calcium), then follow the addition regimen above until calcium is adjusted to 380-420 mg/L. Each 5 mL/80 L (20 US gallons) will raise calcium by about 10 mg/L. Quantity or frequency can be adjusted, but do not exceed 12.5 mL/80 L (20 US gallons) per day. Thereafter, use as required to maintain calcium.

Expert: After determining the calcium consumption rate, set up a continuous drip system. Use the following formula (or skip the math and use our Dosage Calculator) to determine how much to add to your top off water: m=vc/160 (m=mL of product to add to top off water, v=volume of the tank in liters, c=amount to raise calcium in mg/L). [For reference: 1 US gallon=3.8 L].

If used with Reef Calcium, it is not necessary to exceed 380 mg/L total calcium. Use Reef Status: Calcium to measure calcium.

DO NOT OVERDOSE: Excess calcium may enhance the loss of carbonate alkalinity. Do not directly mix with any carbonate supplement. Best if calcium & carbonate additives are added on alternate days or at least 30 minutes apart.

INGREDIENTS: Amounts per 1g Calcium (Ca) (min)

Seachem Reef Complete - Raises Calcium Levels
$8.22
Seachem Reef Complete - Raises Calcium Levels - 17 oz
Seachem Reef Complete - Raises Calcium Levels - 17 oz ('116033305)

Reef Complete is a concentrated (160,000 mg/L) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater without affecting pH. Calcium and carbonates are essential to all coral growth. If either becomes deficient, coral growth will cease, followed by a rapid decline in coral health. To prevent this you must provide calcium (Reef complete) and carbonates (Reef Builder or Reef Carbonate) Reef Complete also includes magnesium and strontium in amounts proportionate to typical utilization ratios (100:5:0.1, Ca:Mg: Sr). This allows one to maintain these two important elements while maintaining calcium. Reef Complete is a blended product. It is not simply calcium chloride. Commercially available calcium chloride contains ammonia. Unlike other ionic calcium supplements, Reef Complete is blended to a higher pH to force the ammonia to gas off into the atmosphere. Also, Reef Complete is more concentrated than any other liquid product on the market. Reef Complete contains 160,000 ppm calcium.

  • Liquid Ionic Calcium Source
  • Maintains Magnesium & Strontium
  • Raises Calcium
  • Essential to Coral Growth
  • Will Not Affect pH

INSTRUCTIONS: Beginner: Use 1 capful (5 mL) per 80 L (20 US gallons) twice a week. Check calcium every 2 weeks and adjust the amount or frequency accordingly

Advanced: Check calcium level (use Reef Status: Calcium to measure calcium), then follow the addition regimen above until calcium is adjusted to 380-420 mg/L. Each 5 mL/80 L (20 US gallons) will raise calcium by about 10 mg/L. Quantity or frequency can be adjusted, but do not exceed 12.5 mL/80 L (20 US gallons) per day. Thereafter, use as required to maintain calcium.

Expert: After determining the calcium consumption rate, set up a continuous drip system. Use the following formula (or skip the math and use our Dosage Calculator) to determine how much to add to your top off water: m=vc/160 (m=mL of product to add to top off water, v=volume of the tank in liters, c=amount to raise calcium in mg/L). [For reference: 1 US gallon=3.8 L].

If used with Reef Calcium, it is not necessary to exceed 380 mg/L total calcium. Use Reef Status: Calcium to measure calcium.

DO NOT OVERDOSE: Excess calcium may enhance the loss of carbonate alkalinity. Do not directly mix with any carbonate supplement. Best if calcium & carbonate additives are added on alternate days or at least 30 minutes apart.

INGREDIENTS: Amounts per 1g Calcium (Ca) (min)

Seachem Reef Complete - Raises Calcium Levels
$22.92
Seachem Reef Advantage Calcium - 2.2 lbs
Seachem Reef Advantage Calcium - 2.2 lbs ('116031707)

Seachem Reef Advantage Calcium is a non-caustic (pH 8.3-8.6) optimized blend of ionic calcium designed to restore and maintain calcium levels to those found in natural seawater. Note that if either calcium or carbonates become deficient, coral growth will cease, followed by a rapid decline in coral health.

  • Raises calcium to natural seawater levels
  • Capable of raising 20 gallons of water by 25 ppm of calcium with only 1 teaspoon
  • Non-caustic and pH balanced (pH 8.3-8.6)
  • Maintains magnesium and strontium, will not deplete alkalinity

In addition to calcium, Reef Advantage provides magnesium and strontium in amounts proportionate to typical utilization ratios (100:5:0.1, Ca:Mg:Sr), helping to maintain three critical elements at once. Unlike limewater (kalkwasser), Reef Advantage Calcium does not have a caustic pH and will not deplete magnesium. When used as directed, it will not deplete alkalinity.

Directions:
BEGINNER: Use 5 g (1 level teaspoon) per 150 L (40 US gallons) twice a week. For precise dosing, use the Seachem Digital Spoon Scale. Dissolve in at least 250 ml (1 cup) of freshwater. Check calcium every 2 weeks and adjust amount or frequency accordingly.

ADVANCED: Check calcium level, then follow addition regimen above until calcium is adjusted to 380–420 mg/L. Each 5 g/150 L will raise calcium by about 12 mg/L. Quantity or frequency can be adjusted, but do not exceed 10 g/150 L per day. Thereafter, use as required to maintain calcium.

EXPERT: After determining the calcium consumption rate, set up a continuous drip system. Use the following formula to determine how much to add to your top-off water: m=vc/400 (m=grams to add to top off water, v=volume of tank in liters, c=amount to raise calcium in mg/L). [For reference: 1 gallon=3.8 liters, 5 g=1 teaspoon].

DO NOT OVERDOSE: Excess calcium may enhance the loss of carbonate alkalinity. Do not directly mix with any carbonate supplement. Best if calcium and carbonate additives are added on alternate days or at least 30 minutes apart.

Ingredients: Calcium Chloride, Magnesium Chloride, Strontium Chloride.

Guaranteed Analysis:
Calcium (Ca) (min) - 335 mg; (max) - 347 mg
Magnesium (Mg) (min) - 17 mg
Strontium (Sr) (min) - 0.34 mg

Seachem Reef Advantage Calcium
$40.32
Seachem Reef Advantage Calcium - 8.8 oz
Seachem Reef Advantage Calcium - 8.8 oz ('116031608)

Seachem Reef Advantage Calcium is a non-caustic (pH 8.3-8.6) optimized blend of ionic calcium designed to restore and maintain calcium levels to those found in natural seawater. Note that if either calcium or carbonates become deficient, coral growth will cease, followed by a rapid decline in coral health.

  • Raises calcium to natural seawater levels
  • Capable of raising 20 gallons of water by 25 ppm of calcium with only 1 teaspoon
  • Non-caustic and pH balanced (pH 8.3-8.6)
  • Maintains magnesium and strontium, will not deplete alkalinity

In addition to calcium, Reef Advantage provides magnesium and strontium in amounts proportionate to typical utilization ratios (100:5:0.1, Ca:Mg:Sr), helping to maintain three critical elements at once. Unlike limewater (kalkwasser), Reef Advantage Calcium does not have a caustic pH and will not deplete magnesium. When used as directed, it will not deplete alkalinity.

Directions:
BEGINNER: Use 5 g (1 level teaspoon) per 150 L (40 US gallons) twice a week. For precise dosing, use the Seachem Digital Spoon Scale. Dissolve in at least 250 ml (1 cup) of freshwater. Check calcium every 2 weeks and adjust amount or frequency accordingly.

ADVANCED: Check calcium level, then follow addition regimen above until calcium is adjusted to 380–420 mg/L. Each 5 g/150 L will raise calcium by about 12 mg/L. Quantity or frequency can be adjusted, but do not exceed 10 g/150 L per day. Thereafter, use as required to maintain calcium.

EXPERT: After determining the calcium consumption rate, set up a continuous drip system. Use the following formula to determine how much to add to your top-off water: m=vc/400 (m=grams to add to top off water, v=volume of tank in liters, c=amount to raise calcium in mg/L). [For reference: 1 gallon=3.8 liters, 5 g=1 teaspoon].

DO NOT OVERDOSE: Excess calcium may enhance the loss of carbonate alkalinity. Do not directly mix with any carbonate supplement. Best if calcium and carbonate additives are added on alternate days or at least 30 minutes apart.

Ingredients: Calcium Chloride, Magnesium Chloride, Strontium Chloride.

Guaranteed Analysis:
Calcium (Ca) (min) - 335 mg; (max) - 347 mg
Magnesium (Mg) (min) - 17 mg
Strontium (Sr) (min) - 0.34 mg

Seachem Reef Advantage Calcium
$10.04
Seachem Reef Advantage Calcium - 1 lb
Seachem Reef Advantage Calcium - 1 lb ('116031301)

Seachem Reef Advantage Calcium is a non-caustic (pH 8.3-8.6) optimized blend of ionic calcium designed to restore and maintain calcium levels to those found in natural seawater. Note that if either calcium or carbonates become deficient, coral growth will cease, followed by a rapid decline in coral health.

  • Raises calcium to natural seawater levels
  • Capable of raising 20 gallons of water by 25 ppm of calcium with only 1 teaspoon
  • Non-caustic and pH balanced (pH 8.3-8.6)
  • Maintains magnesium and strontium, will not deplete alkalinity

In addition to calcium, Reef Advantage provides magnesium and strontium in amounts proportionate to typical utilization ratios (100:5:0.1, Ca:Mg:Sr), helping to maintain three critical elements at once. Unlike limewater (kalkwasser), Reef Advantage Calcium does not have a caustic pH and will not deplete magnesium. When used as directed, it will not deplete alkalinity.

Directions:
BEGINNER: Use 5 g (1 level teaspoon) per 150 L (40 US gallons) twice a week. For precise dosing, use the Seachem Digital Spoon Scale. Dissolve in at least 250 ml (1 cup) of freshwater. Check calcium every 2 weeks and adjust amount or frequency accordingly.

ADVANCED: Check calcium level, then follow addition regimen above until calcium is adjusted to 380–420 mg/L. Each 5 g/150 L will raise calcium by about 12 mg/L. Quantity or frequency can be adjusted, but do not exceed 10 g/150 L per day. Thereafter, use as required to maintain calcium.

EXPERT: After determining the calcium consumption rate, set up a continuous drip system. Use the following formula to determine how much to add to your top-off water: m=vc/400 (m=grams to add to top off water, v=volume of tank in liters, c=amount to raise calcium in mg/L). [For reference: 1 gallon=3.8 liters, 5 g=1 teaspoon].

DO NOT OVERDOSE: Excess calcium may enhance the loss of carbonate alkalinity. Do not directly mix with any carbonate supplement. Best if calcium and carbonate additives are added on alternate days or at least 30 minutes apart.

Ingredients: Calcium Chloride, Magnesium Chloride, Strontium Chloride.

Guaranteed Analysis:
Calcium (Ca) (min) - 335 mg; (max) - 347 mg
Magnesium (Mg) (min) - 17 mg
Strontium (Sr) (min) - 0.34 mg

Seachem Reef Advantage Calcium
$27.60
Seachem Silicone Sealant Black - 3 oz
Seachem Silicone Sealant Black - 3 oz ('116031295)

Seachem Silicone Sealant is a top-of-the-line 100% RTV silicone sealant designed to seal and repair freshwater and saltwater aquariums. The formula creates a permanently flexible, watertight seal with a high tensile strength that won't crack, dissolve or shrink from the pressure or stress caused by the weight of water in your tank. The solution provides unmatched adhesion and sports a clear color.

  • High quality silicone sealant
  • 100% RTV silicone
  • Suitable for freshwater and saltwater aquariums
  • Won't crack, dissolve or shrink
  • Provides a watertight seal

The sealant is black in color and comes in a 3 oz tube

Seachem Silicone Sealant Black
$9.28
Seachem Silicone Sealant Clear - 3 oz
Seachem Silicone Sealant Clear - 3 oz ('116031271)

Seachem Silicone Sealant is a top-of-the-line 100% RTV silicone sealant designed to seal and repair freshwater and saltwater aquariums. The formula creates a permanently flexible, watertight seal with a high tensile strength that won't crack, dissolve or shrink from the pressure or stress caused by the weight of water in your tank. The solution provides unmatched adhesion and sports a clear color.

  • High quality silicone sealant
  • 100% RTV silicone
  • Suitable for freshwater and saltwater aquariums
  • Won't crack, dissolve or shrink
  • Provides a watertight seal

The sealant is clear in color and comes in a 3 oz tube

Seachem Silicone Sealant Clear
$8.86
Seachem Flourish Epoxy Brown - 4 oz
Seachem Flourish Epoxy Brown - 4 oz ('116031264)

Struggling with your aquatic hardscape designs Well, Seachem has a solution for you! Flourish Epoxy is a powerful epoxy adhesive that helps safely and securely create planted aquarium hardscape designs out of materials such as rocks and driftwood. Simply balancing large piles of rocks in the aquarium can result in these structures collapsing and damaging your aquarium or worse, harming your fish. Instead of leaving it up to chance, use Flourish Epoxy to secure your hardscapes. For added benefit, the solution is incredibly fast-acting, with a working time of only 5 minutes and will fully cure both submerged or emerged within 24 hours! Completely safe for even the most sensitive aquarium inhabitants.

  • Powerful epoxy adhesive
  • Ideal for planted tank hardscapes
  • Safely secures rocks and driftwood
  • Fully cures within 24 hours
  • Safe for all aquarium inhabitants

The epoxy is brown in color and comes in a 4 oz tube

Seachem Flourish Epoxy Brown
$10.98
Seachem Flourish Epoxy Grey  - 4 oz
Seachem Flourish Epoxy Grey - 4 oz ('116031257)

Struggling with your aquatic hardscape designs Well, Seachem has a solution for you! Flourish Epoxy is a powerful epoxy adhesive that helps safely and securely create planted aquarium hardscape designs out of materials such as rocks and driftwood. Simply balancing large piles of rocks in the aquarium can result in these structures collapsing and damaging your aquarium or worse, harming your fish. Instead of leaving it up to chance, use Flourish Epoxy to secure your hardscapes. For added benefit, the solution is incredibly fast-acting, with a working time of only 5 minutes and will fully cure both submerged or emerged within 24 hours! Completely safe for even the most sensitive aquarium inhabitants.

  • Powerful epoxy adhesive
  • Ideal for planted tank hardscapes
  • Safely secures rocks and driftwood
  • Fully cures within 24 hours
  • Safe for all aquarium inhabitants

The epoxy is gray in color and comes in a 4 oz tube

Seachem Flourish Epoxy Grey
$10.98
Seachem CoralCrete Purple Epoxy Adhesive - 2 oz
Seachem CoralCrete Purple Epoxy Adhesive - 2 oz ('116031226)

Seachem CoralCrete Epoxy Adhesive securely attaches coral to decorative rockwork in freshwater, marine and reef aquariums. This two-part epoxy putty may also be used to fuse together a stable rockwork foundation for future coral growth. Available in gray or purple, CoralCrete is a must-have for aquariums with branching, polyp, or plating corals.

  • Secures coral to rockwork
  • Fully cures submerged or emerged within 24 hours
  • Matches synthetic reef rock
  • Safe for marine & freshwater aquariums

Directions: For sensitive skin, wear latex gloves. Cut off desired amount of CoralCrete. Replace unused CoralCrete into plastic storage tube. Remove film and knead CoralCrete together until uniform color is achieved. Once mixed, CoralCrete can be used to adhere coral or rock, either submerged or emerged. Press firmly around base or contact point of coral or rock to ensure CoralCrete penetrates pores and surface grooves. Curing begins in about 5 minutes, hardening in about 15 minutes. CoralCrete cures fully in 24 hours. Protein Skimmers may over-activate during cure time.

Note: There is no functional difference between the purple and gray epoxies. Choose whichever color best matches your rock and coral coloring.

Seachem CoralCrete Purple Epoxy Adhesive
$8.58
Seachem CoralCrete Gray Epoxy Adhesive - 4 oz
Seachem CoralCrete Gray Epoxy Adhesive - 4 oz ('116031219)

Seachem CoralCrete Epoxy Adhesive securely attaches coral to decorative rockwork in freshwater, marine and reef aquariums. This two-part epoxy putty may also be used to fuse together a stable rockwork foundation for future coral growth. Available in gray or purple, CoralCrete is a must-have for aquariums with branching, polyp, or plating corals.

  • Secures coral to rockwork
  • Fully cures submerged or emerged within 24 hours
  • Matches synthetic reef rock
  • Safe for marine & freshwater aquariums

Directions: For sensitive skin, wear latex gloves. Cut off desired amount of CoralCrete. Replace unused CoralCrete into plastic storage tube. Remove film and knead CoralCrete together until uniform color is achieved. Once mixed, CoralCrete can be used to adhere coral or rock, either submerged or emerged. Press firmly around base or contact point of coral or rock to ensure CoralCrete penetrates pores and surface grooves. Curing begins in about 5 minutes, hardening in about 15 minutes. CoralCrete cures fully in 24 hours. Protein Skimmers may over-activate during cure time.

Note: There is no functional difference between the purple and gray epoxies. Choose whichever color best matches your rock and coral coloring.

Seachem CoralCrete Gray Epoxy Adhesive
$10.98
Seachem CoralCrete Gray Epoxy Adhesive - 2 oz
Seachem CoralCrete Gray Epoxy Adhesive - 2 oz ('116031202)

Seachem CoralCrete Epoxy Adhesive securely attaches coral to decorative rockwork in freshwater, marine and reef aquariums. This two-part epoxy putty may also be used to fuse together a stable rockwork foundation for future coral growth. Available in gray or purple, CoralCrete is a must-have for aquariums with branching, polyp, or plating corals.

  • Secures coral to rockwork
  • Fully cures submerged or emerged within 24 hours
  • Matches synthetic reef rock
  • Safe for marine & freshwater aquariums

Directions: For sensitive skin, wear latex gloves. Cut off desired amount of CoralCrete. Replace unused CoralCrete into plastic storage tube. Remove film and knead CoralCrete together until uniform color is achieved. Once mixed, CoralCrete can be used to adhere coral or rock, either submerged or emerged. Press firmly around base or contact point of coral or rock to ensure CoralCrete penetrates pores and surface grooves. Curing begins in about 5 minutes, hardening in about 15 minutes. CoralCrete cures fully in 24 hours. Protein Skimmers may over-activate during cure time.

Note: There is no functional difference between the purple and gray epoxies. Choose whichever color best matches your rock and coral coloring.

Seachem CoralCrete Gray Epoxy Adhesive
$8.58
Seachem Neutral Regulator - 9 oz
Seachem Neutral Regulator - 9 oz ('116030601)

Seachem Neutral Regulator adjusts pH to neutral (pH 7.0) from either a low or high pH and maintains it there. It softens water by precipitating calcium and magnesium while removing any chlorine, chloramine, or ammonia.

  • Adjusts high or low pH to 7.0
  • Removes chlorine, chloramines and ammonia
  • Makes other conditioning unnecessary

The use of SeaChem Neutral Regulator makes other conditioning unnecessary. To lower pH below 7.0 use Neutral Regulator with Acid Regulator (or Discus Buffer). To raise pH above 7.0 use with Alkaline Regulator. All of these products will enhance and stabilize the freshwater aquarium environment.

Use Fresh Trace to restore the proper level of trace elements required by thriving, healthy freshwater community fish.

Seachem Neutral Regulator
$10.74
Seachem Neutral Regulator - 1.8 oz
Seachem Neutral Regulator - 1.8 oz ('116030403)

Seachem Neutral Regulator adjusts pH to neutral (pH 7.0) from either a low or high pH and maintains it there. It softens water by precipitating calcium and magnesium while removing any chlorine, chloramine, or ammonia.

  • Adjusts high or low pH to 7.0
  • Removes chlorine, chloramines and ammonia
  • Makes other conditioning unnecessary

The use of SeaChem Neutral Regulator makes other conditioning unnecessary. To lower pH below 7.0 use Neutral Regulator with Acid Regulator (or Discus Buffer). To raise pH above 7.0 use with Alkaline Regulator. All of these products will enhance and stabilize the freshwater aquarium environment.

Use Fresh Trace to restore the proper level of trace elements required by thriving, healthy freshwater community fish.

Seachem Neutral Regulator
$5.38
Seachem Neutral Regulator - 1.1 lbs
Seachem Neutral Regulator - 1.1 lbs ('116030304)

Seachem Neutral Regulator adjusts pH to neutral (pH 7.0) from either a low or high pH and maintains it there. It softens water by precipitating calcium and magnesium while removing any chlorine, chloramine, or ammonia.

  • Adjusts high or low pH to 7.0
  • Removes chlorine, chloramines and ammonia
  • Makes other conditioning unnecessary

The use of SeaChem Neutral Regulator makes other conditioning unnecessary. To lower pH below 7.0 use Neutral Regulator with Acid Regulator (or Discus Buffer). To raise pH above 7.0 use with Alkaline Regulator. All of these products will enhance and stabilize the freshwater aquarium environment.

Use Fresh Trace to restore the proper level of trace elements required by thriving, healthy freshwater community fish.

Seachem Neutral Regulator
$25.82
Seachem Malawi & Victoria Buffer - 2.6 lbs
Seachem Malawi & Victoria Buffer - 2.6 lbs ('116029704)

Seachem Malawi/Victoria Buffer is a blend of carbonate salts designed to enhance the natural environment of cichlids by increasing hardness and buffer capacity, and reaching and maintaining a healthy pH range of 7.8-8.4.

  • Raises and maintains a pH range of 7.8 - 8.4
  • Freshwater aquarium additive increases water hardness (alkalinity)
  • pH conditioner/buffer for Malawi and Victoria cichlids

For optimum replication of the Malawi/Victoria environment, use with Cichlid Lake Salt and Cichlid Trace.

Directions: Use 5 g (1 level teaspoon) for each 10 to 20 gallons of water each day until desired pH is attained and maintained. Thereafter, use as required to maintain pH, usually no more than once every two to three weeks.

Tips: It is best to dissolve the buffer in freshwater before use. Use when setting up an aquarium or making water changes (preferably after the addition of Seachems Cichlid Lake Salt) and between water changes as needed to maintain pH. Seachems Malawi/Victoria Buffer is formulated to maintain a pH between 7.8 and 8.4, depending on the amount used. To attain a lower pH than 7.8, you may use Seachems Acid Buffer in combination with Malawi/Victoria Buffer. To attain a higher pH than 8.4, use Tanganyika Buffer.

Seachem Malawi & Victoria Buffer
$36.98
Seachem Malawi & Victoria Buffer - 9 oz
Seachem Malawi & Victoria Buffer - 9 oz ('116029605)

Seachem Malawi/Victoria Buffer is a blend of carbonate salts designed to enhance the natural environment of cichlids by increasing hardness and buffer capacity, and reaching and maintaining a healthy pH range of 7.8-8.4.

  • Raises and maintains a pH range of 7.8 - 8.4
  • Freshwater aquarium additive increases water hardness (alkalinity)
  • pH conditioner/buffer for Malawi and Victoria cichlids

For optimum replication of the Malawi/Victoria environment, use with Cichlid Lake Salt and Cichlid Trace.

Directions: Use 5 g (1 level teaspoon) for each 10 to 20 gallons of water each day until desired pH is attained and maintained. Thereafter, use as required to maintain pH, usually no more than once every two to three weeks.

Tips: It is best to dissolve the buffer in freshwater before use. Use when setting up an aquarium or making water changes (preferably after the addition of Seachems Cichlid Lake Salt) and between water changes as needed to maintain pH. Seachems Malawi/Victoria Buffer is formulated to maintain a pH between 7.8 and 8.4, depending on the amount used. To attain a lower pH than 7.8, you may use Seachems Acid Buffer in combination with Malawi/Victoria Buffer. To attain a higher pH than 8.4, use Tanganyika Buffer.

Seachem Malawi & Victoria Buffer
$18.80
Seachem Malawi & Victoria Buffer - 1.3 lbs
Seachem Malawi & Victoria Buffer - 1.3 lbs ('116029308)

Seachem Malawi/Victoria Buffer is a blend of carbonate salts designed to enhance the natural environment of cichlids by increasing hardness and buffer capacity, and reaching and maintaining a healthy pH range of 7.8-8.4.

  • Raises and maintains a pH range of 7.8 - 8.4
  • Freshwater aquarium additive increases water hardness (alkalinity)
  • pH conditioner/buffer for Malawi and Victoria cichlids

For optimum replication of the Malawi/Victoria environment, use with Cichlid Lake Salt and Cichlid Trace.

Directions: Use 5 g (1 level teaspoon) for each 10 to 20 gallons of water each day until desired pH is attained and maintained. Thereafter, use as required to maintain pH, usually no more than once every two to three weeks.

Tips: It is best to dissolve the buffer in freshwater before use. Use when setting up an aquarium or making water changes (preferably after the addition of Seachems Cichlid Lake Salt) and between water changes as needed to maintain pH. Seachems Malawi/Victoria Buffer is formulated to maintain a pH between 7.8 and 8.4, depending on the amount used. To attain a lower pH than 7.8, you may use Seachems Acid Buffer in combination with Malawi/Victoria Buffer. To attain a higher pH than 8.4, use Tanganyika Buffer.

Seachem Malawi & Victoria Buffer
$24.90
Seachem Tanganyika Buffer - 8.8 oz
Seachem Tanganyika Buffer - 8.8 oz ('116028608)

Tanganyika Buffer is a blend of carbonate salts designed to enhance the natural environment of cichlids by increasing alkalinity, carbonate hardness, buffer capacity, and pH. It is formulated to maintain a pH of 9.0 to 9.4.

  • Designed to enhance the natural environment of cichlids
  • Increases water hardness, buffer capacity, and pH.
  • Formulated to maintain a pH of 9.0 to 9.4

Instructions: Use 5 g (1 level teaspoon) for each 40 to 80 L (10 to 20 US gallons) of water each day until desired pH is attained and maintained. Thereafter, use as required to maintain pH, usually no more than once every two to three weeks.

TIPS: It is best to dissolve the buffer in freshwater before use. Use when setting up an aquarium or making water changes (preferably after the addition of Seachem Cichlid Lake Salt) and between water changes as needed to maintain pH. Seachem Tanganyika Buffer is formulated to maintain a pH between 9.0 and 9.4, depending on the amount used. For lower pH, use Malawi/Victoria Buffer (pH 7.8 so 8.4), either alone or in combination with Tanganyika Buffer.

Seachem Tanganyika Buffer
$8.32
Seachem Cichlid Lake Salt - 250 g / 8.8oz
Seachem Cichlid Lake Salt - 250 g / 8.8oz ('116027601)

Seachem Cichlid Lake Salt is a chemically-sound blend of salts designed to replicate the natural environment of cichlids. It contains all physiologically essential elements such as magnesium, calcium, sodium and potassium, as well as trace elements such as iron, aluminum, and iodide.

  • Chemically sound blend of salts
  • Replicates the natural environment of African Cichlids
  • Contains all physiologically essential elements

Contains no harmful or unnecessary ingredients such as nitrates, phosphates, arsenic, lithium, or cadmium.

Dosing: (by fish origin)

  • Tanganyika - 1.5 tsp. per 10 gallons (250 grams treats 160 gallons)
  • Malawi - .75 tsp. per 10 gallons (250 grams treats 350 gallons)
  • Victoria - .5 tsp. per 10 gallons (250 grams treats 500 gallons)

Directions: (All doses given for 10 gallons [40 L])

  • Tanganyika: Use 11 g (1.5 teaspoons).
  • Malawi: Use 5.5 g (3/4 teaspoons).
  • Victoria: Use 3.6 g (1/2 teaspoon).
  • pH Buffering: Seachems Tanganyika Buffer (pH 9.0–9.4) and Malawi/Victoria Buffer (pH 7.8–8.4) should be used to adjust carbonate hardness and pH.

Tips: Use when setting up an aquarium and when making water changes. To add salt to an established tank, base dose on water being changed. Do not use salt when simply replacing evaporated water. It is best to dissolve the salt in freshwater before use.

Seachem Cichlid Lake Salt
$10.06
Seachem Discus Buffer - 2.2 lbs
Seachem Discus Buffer - 2.2 lbs ('116026703)

SeaChem Discus Buffer helps to replicate the ideal Discus environment (low pH and low GH (General Hardness)). Discus Buffer will lower pH and keep it lowered. Discus Buffer also softens water by precipitating calcium and magnesium.

  • Adjusts pH to 5.8 - 6.8
  • Helps to replicate the ideal Discus environment
  • Softens water by precipitating calcium and magnesium

Use SeaChem Discus Trace to restore the proper level of trace elements required by thriving, healthy Discus.

Directions: Use 1 level teaspoon (7 g) for every 40-80 L (10-20 gallons) daily until intended pH is reached. Thereafter, use once a month or with water changes as required to maintain pH

Seachem Discus Buffer
$37.10
Seachem Discus Buffer - 9 oz
Seachem Discus Buffer - 9 oz ('116026604)

SeaChem Discus Buffer helps to replicate the ideal Discus environment (low pH and low GH (General Hardness)). Discus Buffer will lower pH and keep it lowered. Discus Buffer also softens water by precipitating calcium and magnesium.

  • Adjusts pH to 5.8 - 6.8
  • Helps to replicate the ideal Discus environment
  • Softens water by precipitating calcium and magnesium

Use SeaChem Discus Trace to restore the proper level of trace elements required by thriving, healthy Discus.

Directions: Use 1 level teaspoon (7 g) for every 40-80 L (10-20 gallons) daily until intended pH is reached. Thereafter, use once a month or with water changes as required to maintain pH

Seachem Discus Buffer
$10.74
Seachem Acid Buffer - 1.2 kg (2.6 lbs)
Seachem Acid Buffer - 1.2 kg (2.6 lbs) ('116024709)

Seachem Acid Buffer is a non-phosphate buffer to lower pH and buffer with Alkaline Buffer. Both buffers are designed for the planted aquarium or for very hard water where phosphate buffers may pose an algae or cloudiness problem.

  • Lowers aquarium pH and buffers from 6.0 to 8.0
  • Converts alkalinity into CO2
  • For the planted aquarium or very hard water

Seachem Acid Buffer lowers pH and buffers between 5.0 and 8.0 when used with Alkaline Buffer. As Acid Buffer lowers pH it converts carbonate alkalinity (KH) into available CO2. It may also be used to safely lower pH in marine water.

Directions: To lower pH, use 1/4 teaspoon (2g) for every 80 L (20 US gallons) daily until desired pH is reached (this dose lowers alkalinity by about 0.2 meq/L (0.6 dKH)). Larger doses may be required in very hard (KH) or alkaline waters.

Seachem Acid Buffer
$38.06
Seachem Acid Buffer - 300 Grams (10.6 oz)
Seachem Acid Buffer - 300 Grams (10.6 oz) ('116024600)

Seachem Acid Buffer is a non-phosphate buffer to lower pH and buffer with Alkaline Buffer. Both buffers are designed for the planted aquarium or for very hard water where phosphate buffers may pose an algae or cloudiness problem.

  • Lowers aquarium pH and buffers from 6.0 to 8.0
  • Converts alkalinity into CO2
  • For the planted aquarium or very hard water

Seachem Acid Buffer lowers pH and buffers between 5.0 and 8.0 when used with Alkaline Buffer. As Acid Buffer lowers pH it converts carbonate alkalinity (KH) into available CO2. It may also be used to safely lower pH in marine water.

Directions: To lower pH, use 1/4 teaspoon (2g) for every 80 L (20 US gallons) daily until desired pH is reached (this dose lowers alkalinity by about 0.2 meq/L (0.6 dKH)). Larger doses may be required in very hard (KH) or alkaline waters.

Seachem Acid Buffer
$18.92
Seachem Alkaline Buffer - 4 kg (8.8 lbs)
Seachem Alkaline Buffer - 4 kg (8.8 lbs) ('116023900)

Seachem Alkaline Buffer raises the pH and alkalinity (KH) of your aquarium water and holds it steady between 7.2 and 8.5 - an ideal range for most freshwater environments. Alkaline Buffer is safe, gentle, and phosphate-free to reduce the risk of algae or cloudiness.

  • Raises pH and increases alkalinity
  • Buffers pH between 7.2 and 8.5
  • Great for planted aquariums or very hard water

Seachem Alkaline Buffer is a sodium bicarbonate-based buffer. This makes it slightly less stable than phosphate buffers, but better suited for planted aquariums where adding more phosphates would lead to an algae problem.

Dosage:
300 grams (10.5 oz): Treats 860 Gallons
600 grams (1.3 lbs): Treats 1,720 Gallons
1.2 kg (2.6 lbs): Treats 3,440 Gallons
4 kg (8.8 lbs): Treats 11,640 Gallons

Directions: To increase pH, use 1 teaspoon (7g) for every 80 L (20 gallons) daily until the desired pH is reached (this dose raises alkalinity by about 1 meq/L (2.8 dKH)). For precise dosing, use the Seachem Digital Spoon Scale. In order to adjust pH gradually, use Alkaline Buffer with Acid Buffer.

FAQ:

  • Q: What is the difference between Neutral Regulator, Discus Buffer, Alkaline Buffer, and Acid Buffer
    A: Neutral Regulator and Discus Buffer are phosphate-based buffers providing a very strong and stable buffering system. Alkaline Buffer and Acid Buffer are non-phosphate buffers, which although less stable than a phosphate buffer, are ideal for the planted aquarium where high phosphate levels would lead to an algae problem.
  • Q: Is Alkaline Buffer a sodium bicarbonate
    A: Yes, it is a sodium bicarbonate-based buffer.
Seachem Alkaline Buffer
$90.12
Seachem Alkaline Buffer - 1,200 Grams (2.6 lbs)
Seachem Alkaline Buffer - 1,200 Grams (2.6 lbs) ('116023702)

Seachem Alkaline Buffer raises the pH and alkalinity (KH) of your aquarium water and holds it steady between 7.2 and 8.5 - an ideal range for most freshwater environments. Alkaline Buffer is safe, gentle, and phosphate-free to reduce the risk of algae or cloudiness.

  • Raises pH and increases alkalinity
  • Buffers pH between 7.2 and 8.5
  • Great for planted aquariums or very hard water

Seachem Alkaline Buffer is a sodium bicarbonate-based buffer. This makes it slightly less stable than phosphate buffers, but better suited for planted aquariums where adding more phosphates would lead to an algae problem.

Dosage:
300 grams (10.5 oz): Treats 860 Gallons
600 grams (1.3 lbs): Treats 1,720 Gallons
1.2 kg (2.6 lbs): Treats 3,440 Gallons
4 kg (8.8 lbs): Treats 11,640 Gallons

Directions: To increase pH, use 1 teaspoon (7g) for every 80 L (20 gallons) daily until the desired pH is reached (this dose raises alkalinity by about 1 meq/L (2.8 dKH)). For precise dosing, use the Seachem Digital Spoon Scale. In order to adjust pH gradually, use Alkaline Buffer with Acid Buffer.

FAQ:

  • Q: What is the difference between Neutral Regulator, Discus Buffer, Alkaline Buffer, and Acid Buffer
    A: Neutral Regulator and Discus Buffer are phosphate-based buffers providing a very strong and stable buffering system. Alkaline Buffer and Acid Buffer are non-phosphate buffers, which although less stable than a phosphate buffer, are ideal for the planted aquarium where high phosphate levels would lead to an algae problem.
  • Q: Is Alkaline Buffer a sodium bicarbonate
    A: Yes, it is a sodium bicarbonate-based buffer.
Seachem Alkaline Buffer
$39.40
Seachem Alkaline Buffer - 250 Grams (10.5 oz)
Seachem Alkaline Buffer - 250 Grams (10.5 oz) ('116023603)

Seachem Alkaline Buffer raises the pH and alkalinity (KH) of your aquarium water and holds it steady between 7.2 and 8.5 - an ideal range for most freshwater environments. Alkaline Buffer is safe, gentle, and phosphate-free to reduce the risk of algae or cloudiness.

  • Raises pH and increases alkalinity
  • Buffers pH between 7.2 and 8.5
  • Great for planted aquariums or very hard water

Seachem Alkaline Buffer is a sodium bicarbonate-based buffer. This makes it slightly less stable than phosphate buffers, but better suited for planted aquariums where adding more phosphates would lead to an algae problem.

Dosage:
300 grams (10.5 oz): Treats 860 Gallons
600 grams (1.3 lbs): Treats 1,720 Gallons
1.2 kg (2.6 lbs): Treats 3,440 Gallons
4 kg (8.8 lbs): Treats 11,640 Gallons

Directions: To increase pH, use 1 teaspoon (7g) for every 80 L (20 gallons) daily until the desired pH is reached (this dose raises alkalinity by about 1 meq/L (2.8 dKH)). For precise dosing, use the Seachem Digital Spoon Scale. In order to adjust pH gradually, use Alkaline Buffer with Acid Buffer.

FAQ:

  • Q: What is the difference between Neutral Regulator, Discus Buffer, Alkaline Buffer, and Acid Buffer
    A: Neutral Regulator and Discus Buffer are phosphate-based buffers providing a very strong and stable buffering system. Alkaline Buffer and Acid Buffer are non-phosphate buffers, which although less stable than a phosphate buffer, are ideal for the planted aquarium where high phosphate levels would lead to an algae problem.
  • Q: Is Alkaline Buffer a sodium bicarbonate
    A: Yes, it is a sodium bicarbonate-based buffer.
Seachem Alkaline Buffer
$19.16
Seachem Alkaline Buffer - 600 Grams (1.3 lbs)
Seachem Alkaline Buffer - 600 Grams (1.3 lbs) ('116023306)

Seachem Alkaline Buffer raises the pH and alkalinity (KH) of your aquarium water and holds it steady between 7.2 and 8.5 - an ideal range for most freshwater environments. Alkaline Buffer is safe, gentle, and phosphate-free to reduce the risk of algae or cloudiness.

  • Raises pH and increases alkalinity
  • Buffers pH between 7.2 and 8.5
  • Great for planted aquariums or very hard water

Seachem Alkaline Buffer is a sodium bicarbonate-based buffer. This makes it slightly less stable than phosphate buffers, but better suited for planted aquariums where adding more phosphates would lead to an algae problem.

Dosage:
300 grams (10.5 oz): Treats 860 Gallons
600 grams (1.3 lbs): Treats 1,720 Gallons
1.2 kg (2.6 lbs): Treats 3,440 Gallons
4 kg (8.8 lbs): Treats 11,640 Gallons

Directions: To increase pH, use 1 teaspoon (7g) for every 80 L (20 gallons) daily until the desired pH is reached (this dose raises alkalinity by about 1 meq/L (2.8 dKH)). For precise dosing, use the Seachem Digital Spoon Scale. In order to adjust pH gradually, use Alkaline Buffer with Acid Buffer.

FAQ:

  • Q: What is the difference between Neutral Regulator, Discus Buffer, Alkaline Buffer, and Acid Buffer
    A: Neutral Regulator and Discus Buffer are phosphate-based buffers providing a very strong and stable buffering system. Alkaline Buffer and Acid Buffer are non-phosphate buffers, which although less stable than a phosphate buffer, are ideal for the planted aquarium where high phosphate levels would lead to an algae problem.
  • Q: Is Alkaline Buffer a sodium bicarbonate
    A: Yes, it is a sodium bicarbonate-based buffer.
Seachem Alkaline Buffer
$25.44
Seachem Brackish Salt for Aquariums - 10.6 oz
Seachem Brackish Salt for Aquariums - 10.6 oz ('116022606)

Seachem live bearer/brackish aquarium salt is a chemically sound blend of salts designed to replicate the native environment of live bearers and other brackish estuary fish without adversely impacting on aquatic plants when used at regionally specific recommended dosage. The salt is also well suited for routine aquarium freshwater use. It does not impact pH or provide buffering. For low range pH control Use Acid buffer, discus buffer, South American Cichlid buffer 4. 5, or Acid regulator. Use neutral regulator, Central American Cichlid buffer or South American Cichlid buffer 7. 0 for neutral pH. For high range pH control Use alkaline regulator, alkaline buffer or Tanganyika buffer.

  • A chemically sound blend of salts designed to replicate native environment of live bearers and other brackish estuary fish
  • Designed to function without adversely impacting on aquatic plants when used at regionally specific recommended dosage
  • Well suited for routine Aquarium freshwater dosage
  • Does not impact pH or provide buffering
  • <
Seachem Brackish Salt for Aquariums
$7.06
Seachem CupriSorb Powerful Adsorbent of Copper and Heavy Metals for Aquariums - 100 mL
Seachem CupriSorb Powerful Adsorbent of Copper and Heavy Metals for Aquariums - 100 mL ('116020503)

Cuprisorb is a powerful adsorbent of copper and heavy metals. Cuprisorb will remove copper more rapidly and efficiently than carbon and is thus ideal for emergency copper removal. It extracts All types of copper, including chelated copper, and remains effective until it turns a deep blue-black color. It may be regenerated repeatedly. If placed in continuous use, it will gradually extract even precipitated copper from the gravel/substrate bed as well. Cuprisorb will allow maintenance of invertebrates in copper-treated tanks by removing copper leaching from substrates.

  • Powerful adsorbent of copper and heavy metals
  • Copper specific chelating resin
  • Removes all types of copper
Seachem CupriSorb Powerful Adsorbent of Copper and Heavy Metals for Aquariums
$12.86
Seachem Flourish Phosphorous - 500 mL
Seachem Flourish Phosphorous - 500 mL ('116019309)

Seachem Flourish Phosphorus helps accelerate and enhance the growth of live aquarium plants, without contributing to nuisance algae growth. This simple, safe solution contains no nitrates, allowing precise phosphorus dosing to meet your plants' needs.

  • Phosphorus supplement for the planted aquarium
  • Safe solution (4,500 mg/L) of potassium phosphate
  • Contains no nitrate and does not contribute to algae growth

Flourish Phosphorus supplies an ideal concentration (4,500 mg/L) of phosphorus, one of the three macro nutrients required for healthy plant growth (the others are nitrogen and potassium). Unlike competing products, it is nitrate-free and allows you to accurately dose your aquariums phosphate levels without the risk of overdosing nitrates. Use Flourish Phosphorus along with Flourish Nitrogen and Flourish Potassiumto achieve an ideal ratio of all three nutrients.

Directions:
Beginner: Use 2.5 mL (half a cap) for each 80 L (20 gallons) once ot twice a week or as needed in response to signs of phosphorus deficiency (such as stunted growth and/or very dark green coloring).

Expert: The beginner dose raises phosphorus by 0.05 mg/L (0.15 mg/L phosphate). The ideal phosphate level will vary, but generally ranges from 0.15-1.0 mg/L. Use a reliable test kit to monitor phosphate levels. To target a specific phosphate increase, dose according to the following formula: 0.8vp=m, where v=volume of tank in gallons, p=desired phosphate increase and m=volume of product to use (in mL). For example, to raise 20 gallons to 0.1 mg/L phosphate you would use: 0.8x20x0.1=1.6 mL.

Guaranteed Analysis:
Total Phosphate (P2O5) - 0.3%
Soluble Potash (K2O) - 0.2%

Seachem Flourish Phosphorous
$23.24
Seachem Clarity Water Clarifier - 17 oz
Seachem Clarity Water Clarifier - 17 oz ('116014304)

Seachem Clarity is the ultimate clarifier for both fresh and saltwater. It employs an advanced polymeric flocculating agent that is both reef and plant safe. Clarity is the only clarifier on the market that does it all!

  • Water clarifier for fresh and saltwater aquariums
  • Helps clear cloudy water fast
  • Safe for use in live plant and reef tanks

Seachem Clarity will clear all types of clouding, including: bacterial and other biological type blooms, chemical clouding, and particulate clouding (i.e. stirred up gravel bed). When Clarity clears up bacterial clouding it helps to accelerate and enhance the colonization of the biological filter by efficiently relocating these natural biofilms to the biosupport media in the filter.

Directions: Use 1 capful (5 mL) for every 20 gallons. In some situations the cloudiness may increase slightly after adding Clarity, however this is normal and is a sign that Clarity is actively working. Rapid clarification will follow.

Seachem Clarity Water Clarifier
$29.00
Seachem Ammonia Alert - Ammonia Test Kit
Seachem Ammonia Alert - Ammonia Test Kit ('116001007)

Seachem Ammonia Alert is an innovative color device for continuously detecting and monitoring free ammonia in aquariums. A sensor changes from yellow to green to blue, relative to the ammonia concentration in the water. Seachem Ammonia Alert detects less than 0.05 mg/L (ppm) free ammonia and alerts you before fish show any signs of stress. It lasts over a year and replacement sensors are available.

  • Easy visual gauge to monitor ammonia in your reef or fish tank
  • Use in saltwater or freshwater aquariums
  • Provides 1 year of ammonia detection

In the absence of free ammonia the unit will assume a yellow or faint yellow-green color. It is normal for the dry sensor to have a greenish hue. It may take up to a few days for a dry sensor to equilibrate with the water. No sampling of water or test procedures are required. The presence of the free ammonia is detectable continuously with a response time of about 15 minutes. Response to decreasing ammonia is slower, requiring about 4 hours to register a SAFE reading.

Seachem Ammonia Alert
$10.90
Seachem Alert Series Alert Combo - 1 Pack - (3-6 Month Alert)
Seachem Alert Series Alert Combo - 1 Pack - (3-6 Month Alert) ('116001205)

The Seachem Alert Combo pack is a revolutionary way to keep tabs on your aquariums essential levels. This unique tester provides continuous pH and ammonia readings for up to 6 months, eliminating the need for strips and complicated tests.

  • Continuous freshwater pH and ammonia readings
  • No strips, no tests, just constant readings
  • Up to 6 months of constant monitoring

Alert Combo is easy to use: just place each reader somewhere visible in your aquarium, and you're done! After only a few minutes the readers will automatically detect and display your waters pH and ammonia levels using a simple color-coded system, and will continuously update every 10 minutes after that. No care is required beyond removing any algae accumulation with a clean, soft material.

Ammonia Alert works in freshwater and marine aquariums, and provides continuous readings for up to 1 year. pH Alert works only in freshwater aquariums, and provides continuous readings of pH levels between 5.4 and 8.0 for 3-6 months.

Seachem Alert Series Alert Combo
$14.14
Seachem One Year Combo Alert - 1 Pack
Seachem One Year Combo Alert - 1 Pack ('116000130)

Seachem One Year Combo Alert uses Seachem water sensor technology to continuously monitor ammonia and freshwater pH in your aquarium for an entire year, no tests or strips required. All you have to do is hang it in your tank!

  • Continuous freshwater pH and ammonia readings
  • No strips, no tests, just constant readings
  • Easy monitoring - just hang in your tank

Ammonia Alert: The sensor automatically detects free ammonia at levels less than 0.05 mg/L (ppm) and alerts you to the presence of the primary killer of fish before it reaches hazardous levels and causes signs of stress. In the absence of free ammonia the sensor will assume a yellow color, and will move to green and blue as more ammonia is detected. Ammonia is detected continuously with a response time of just 15 minutes, allowing you to respond immediately and avoid further increases. Ammonia Alert lasts over 9 times as long as competing products, and is only about half the size.

pH Alert: pH is constantly monitored, with a sensor that alerts you to shifts in pH levels between 5.4 and 8.0 (freshwater only). It lasts up to 4 times as long as competing products and is small, clear, and unobtrusive when in the tank.

Seachem One Year Combo Alert
$18.08
Seachem pH Alert for Freshwater - pH Test Kit (Lasts 3-6 Months)
Seachem pH Alert for Freshwater - pH Test Kit (Lasts 3-6 Months) ('116002004)

Seachem pH Alert Reader is a unique color device designed to be placed in the aquarium or filter and monitor pH continuously. A sensor changes color reversibly to alert you shifts to in pH levels between 5.8 and 8.5.

  • No strips, no tests, just constant readings
  • Detects pH shifts anytime for 3-6 months
  • Small and unobtrusive
  • For freshwater use only

DIRECTIONS: Simply place Sea Chem pH Alert Reader visibly anywhere in the aquarium or filter. Its that easy. No chemicals or test procedures are required. When first put in service, response time will be about 30 minutes. Thereafter, pH shifts will register within ten minutes. The life of the pH Alert Reader sensor may vary depending on a variety of tank parameters. A replacement sensor is included to ensure effectiveness for 3 to 6 months. Sensor exhaustion is indicated by a visible fading or washing out of sensor color.

Seachem pH Alert for Freshwater
$10.30
Seachem NeoPlex Broad Spectrum Antibiotic - 10 g (0.35 oz)
Seachem NeoPlex Broad Spectrum Antibiotic - 10 g (0.35 oz) ('116068208)

Seachem NeoPlex Broad Spectrum Antibiotic is effective against most external infections. When used as directed NeoPlex will not discolor the water or damage the filter bed and is well tolerated by most invertebrates. Neoplex is safe for both marine and freshwater fish.

  • Treats external fungal and bacterial disease
  • For marine & freshwater
  • Will not discolor water

Seachem NeoPlex Broad Spectrum Antibiotic
$10.72
Seachem Matrix Carbon High Efficiency Spherical Carbon - 250 mL
Seachem Matrix Carbon High Efficiency Spherical Carbon - 250 mL ('116010603)

Matrix carbon is a truly unique Activated carbon. It is formed as a spherical bead for optimum hydrodynamics, and will not pack. It permits maximum water flow and contact with its high density of microporous binding sites. Matrix carbon has a very low ash content as indicated by its minimal impact on ph. Even when added to distilled water, it does not raise pH above 7.0. While all carbons contain phosphate, regardless of false claims to the contrary, matrix carbon has the Lowest detectable leachable phosphate content of all major carbon brands tested. Matrix carbon outperforms other high grade carbons by at least two-fold when compared for total capacity to remove aquarium organic matter, rate of adsorption, and duration of use.

  • No Binding or packing
  • Will not raise pH over 7.0
  • High performance
Seachem Matrix Carbon High Efficiency Spherical Carbon
$8.62
Seachem Matrix Biofilter Support Media - 17 oz
Seachem Matrix Biofilter Support Media - 17 oz ('116011303)

Seachem Matrix Bio Media is a highly porous media designed to provide exceptionally efficient biofiltration for single site removal of ammonia, nitrite, and nitrate from freshwater, marine, and reef aquaria.

  • Premium natural bio-filter support media
  • Removes ammonia, nitrite and nitrate from fresh, salt and reef tanks
  • 1 liter is equivalent to over 40 L of typical plastic ball media

Each liter of Matrix provides over 160,000 cm2 (170 sq. ft.) of surface, equivalent to over 40 L (10 gallons) of typical plastic ball media! This product is sold by volume. Cited weight is minimal weight.

Directions: Use 500 mL of Matrix for each 200 L (50 gallons) of water. Matrix may be placed in any kind of filter, and is particularly effective in a canister filter. Matrix is sufficiently large that no filter bag should be required for most applications. Matrix works well in drip tray systems, but you may find that the larger Pond Matrix is better suited for such applications.

Seachem Matrix Biofilter Support Media
$18.34
Seachem Matrix Biofilter Support Media - 250 mL
Seachem Matrix Biofilter Support Media - 250 mL ('116011600)

Seachem Matrix Bio Media is a highly porous media designed to provide exceptionally efficient biofiltration for single site removal of ammonia, nitrite, and nitrate from freshwater, marine, and reef aquaria.

  • Premium natural bio-filter support media
  • Removes ammonia, nitrite and nitrate from fresh, salt and reef tanks
  • 1 liter is equivalent to over 40 L of typical plastic ball media

Each liter of Matrix provides over 160,000 cm2 (170 sq. ft.) of surface, equivalent to over 40 L (10 gallons) of typical plastic ball media! This product is sold by volume. Cited weight is minimal weight.

Directions: Use 500 mL of Matrix for each 200 L (50 gallons) of water. Matrix may be placed in any kind of filter, and is particularly effective in a canister filter. Matrix is sufficiently large that no filter bag should be required for most applications. Matrix works well in drip tray systems, but you may find that the larger Pond Matrix is better suited for such applications.

Seachem Matrix Biofilter Support Media
$5.60
Seachem Matrix Biofilter Support Media - 34 oz
Seachem Matrix Biofilter Support Media - 34 oz ('116011709)

Seachem Matrix Bio Media is a highly porous media designed to provide exceptionally efficient biofiltration for single site removal of ammonia, nitrite, and nitrate from freshwater, marine, and reef aquaria.

  • Premium natural bio-filter support media
  • Removes ammonia, nitrite and nitrate from fresh, salt and reef tanks
  • 1 liter is equivalent to over 40 L of typical plastic ball media

Each liter of Matrix provides over 160,000 cm2 (170 sq. ft.) of surface, equivalent to over 40 L (10 gallons) of typical plastic ball media! This product is sold by volume. Cited weight is minimal weight.

Directions: Use 500 mL of Matrix for each 200 L (50 gallons) of water. Matrix may be placed in any kind of filter, and is particularly effective in a canister filter. Matrix is sufficiently large that no filter bag should be required for most applications. Matrix works well in drip tray systems, but you may find that the larger Pond Matrix is better suited for such applications.

Seachem Matrix Biofilter Support Media
$24.90
Seachem Matrix Biofilter Support Media - 68 oz
Seachem Matrix Biofilter Support Media - 68 oz ('116011808)

Seachem Matrix Bio Media is a highly porous media designed to provide exceptionally efficient biofiltration for single site removal of ammonia, nitrite, and nitrate from freshwater, marine, and reef aquaria.

  • Premium natural bio-filter support media
  • Removes ammonia, nitrite and nitrate from fresh, salt and reef tanks
  • 1 liter is equivalent to over 40 L of typical plastic ball media

Each liter of Matrix provides over 160,000 cm2 (170 sq. ft.) of surface, equivalent to over 40 L (10 gallons) of typical plastic ball media! This product is sold by volume. Cited weight is minimal weight.

Directions: Use 500 mL of Matrix for each 200 L (50 gallons) of water. Matrix may be placed in any kind of filter, and is particularly effective in a canister filter. Matrix is sufficiently large that no filter bag should be required for most applications. Matrix works well in drip tray systems, but you may find that the larger Pond Matrix is better suited for such applications.

Seachem Matrix Biofilter Support Media
$36.12
Seachem Stability New Tank Stabilizing System - 17 oz
Seachem Stability New Tank Stabilizing System - 17 oz ('116012300)

Seachem Stability quickly stabilizes new aquarium environments and establishes the bio-filter for rapid, safe startup. Its unique blend of aerobic, anaerobic and facultative bacteria break down organic waste and toxic ammonia, nitrate and nitrite to prevent "new tank syndrome," the #1 cause of fish death.

  • New tank stabilization system for marine and freshwater
  • Rapidly and safely establishes bio-filter
  • Prevents fish death from "new tank syndrome"

Unlike competing products, the bacteria employed by Stability are non-sulfur fixing and will not produce toxic hydrogen sulfide. Stability is completely harmless to all aquatic organisms (including aquatic plants) so there is no danger of overuse. The result of nearly a decade of research and development, Seachem Stability represents the current state of the art in natural biological management.

Directions: Use 1 capful (5 mL) for each 40 L (10 gallons) on the first day with a new aquarium. After that use 1 capful for each 80 L (20 gallons) daily for 7 days. Fish and other aquatic species may be introduced at any time as long as dosage is maintained for 7 days. For optimum bio-filter performance use 1 capful for each 40 L (10 gallons) once a month or with each water change, whenever introducing new fish, or whenever medicating an aquarium.

Tip: Use along with Seachem Prime when setting up a new tank to create an ideal safe environment for your fish.

Seachem Stability New Tank Stabilizing System
$29.52
Seachem Stability New Tank Stabilizing System - 1.7 oz
Seachem Stability New Tank Stabilizing System - 1.7 oz ('116012409)

Seachem Stability quickly stabilizes new aquarium environments and establishes the bio-filter for rapid, safe startup. Its unique blend of aerobic, anaerobic and facultative bacteria break down organic waste and toxic ammonia, nitrate and nitrite to prevent "new tank syndrome," the #1 cause of fish death.

  • New tank stabilization system for marine and freshwater
  • Rapidly and safely establishes bio-filter
  • Prevents fish death from "new tank syndrome"

Unlike competing products, the bacteria employed by Stability are non-sulfur fixing and will not produce toxic hydrogen sulfide. Stability is completely harmless to all aquatic organisms (including aquatic plants) so there is no danger of overuse. The result of nearly a decade of research and development, Seachem Stability represents the current state of the art in natural biological management.

Directions: Use 1 capful (5 mL) for each 40 L (10 gallons) on the first day with a new aquarium. After that use 1 capful for each 80 L (20 gallons) daily for 7 days. Fish and other aquatic species may be introduced at any time as long as dosage is maintained for 7 days. For optimum bio-filter performance use 1 capful for each 40 L (10 gallons) once a month or with each water change, whenever introducing new fish, or whenever medicating an aquarium.

Tip: Use along with Seachem Prime when setting up a new tank to create an ideal safe environment for your fish.

Seachem Stability New Tank Stabilizing System
$4.56
Seachem Stability New Tank Stabilizing System - 3.4 oz
Seachem Stability New Tank Stabilizing System - 3.4 oz ('116012508)

Seachem Stability quickly stabilizes new aquarium environments and establishes the bio-filter for rapid, safe startup. Its unique blend of aerobic, anaerobic and facultative bacteria break down organic waste and toxic ammonia, nitrate and nitrite to prevent "new tank syndrome," the #1 cause of fish death.

  • New tank stabilization system for marine and freshwater
  • Rapidly and safely establishes bio-filter
  • Prevents fish death from "new tank syndrome"

Unlike competing products, the bacteria employed by Stability are non-sulfur fixing and will not produce toxic hydrogen sulfide. Stability is completely harmless to all aquatic organisms (including aquatic plants) so there is no danger of overuse. The result of nearly a decade of research and development, Seachem Stability represents the current state of the art in natural biological management.

Directions: Use 1 capful (5 mL) for each 40 L (10 gallons) on the first day with a new aquarium. After that use 1 capful for each 80 L (20 gallons) daily for 7 days. Fish and other aquatic species may be introduced at any time as long as dosage is maintained for 7 days. For optimum bio-filter performance use 1 capful for each 40 L (10 gallons) once a month or with each water change, whenever introducing new fish, or whenever medicating an aquarium.

Tip: Use along with Seachem Prime when setting up a new tank to create an ideal safe environment for your fish.

Seachem Stability New Tank Stabilizing System
$5.84
Seachem Stability New Tank Stabilizing System - 8.5 oz
Seachem Stability New Tank Stabilizing System - 8.5 oz ('116012607)

Seachem Stability quickly stabilizes new aquarium environments and establishes the bio-filter for rapid, safe startup. Its unique blend of aerobic, anaerobic and facultative bacteria break down organic waste and toxic ammonia, nitrate and nitrite to prevent "new tank syndrome," the #1 cause of fish death.

  • New tank stabilization system for marine and freshwater
  • Rapidly and safely establishes bio-filter
  • Prevents fish death from "new tank syndrome"

Unlike competing products, the bacteria employed by Stability are non-sulfur fixing and will not produce toxic hydrogen sulfide. Stability is completely harmless to all aquatic organisms (including aquatic plants) so there is no danger of overuse. The result of nearly a decade of research and development, Seachem Stability represents the current state of the art in natural biological management.

Directions: Use 1 capful (5 mL) for each 40 L (10 gallons) on the first day with a new aquarium. After that use 1 capful for each 80 L (20 gallons) daily for 7 days. Fish and other aquatic species may be introduced at any time as long as dosage is maintained for 7 days. For optimum bio-filter performance use 1 capful for each 40 L (10 gallons) once a month or with each water change, whenever introducing new fish, or whenever medicating an aquarium.

Tip: Use along with Seachem Prime when setting up a new tank to create an ideal safe environment for your fish.

Seachem Stability New Tank Stabilizing System
$11.86
Seachem Stability New Tank Stabilizing System - 68 oz
Seachem Stability New Tank Stabilizing System - 68 oz ('116012805)

Seachem Stability quickly stabilizes new aquarium environments and establishes the bio-filter for rapid, safe startup. Its unique blend of aerobic, anaerobic and facultative bacteria break down organic waste and toxic ammonia, nitrate and nitrite to prevent "new tank syndrome," the #1 cause of fish death.

  • New tank stabilization system for marine and freshwater
  • Rapidly and safely establishes bio-filter
  • Prevents fish death from "new tank syndrome"

Unlike competing products, the bacteria employed by Stability are non-sulfur fixing and will not produce toxic hydrogen sulfide. Stability is completely harmless to all aquatic organisms (including aquatic plants) so there is no danger of overuse. The result of nearly a decade of research and development, Seachem Stability represents the current state of the art in natural biological management.

Directions: Use 1 capful (5 mL) for each 40 L (10 gallons) on the first day with a new aquarium. After that use 1 capful for each 80 L (20 gallons) daily for 7 days. Fish and other aquatic species may be introduced at any time as long as dosage is maintained for 7 days. For optimum bio-filter performance use 1 capful for each 40 L (10 gallons) once a month or with each water change, whenever introducing new fish, or whenever medicating an aquarium.

Tip: Use along with Seachem Prime when setting up a new tank to create an ideal safe environment for your fish.

Seachem Stability New Tank Stabilizing System
$60.00
Seachem De-Nitrate - Nitrate Remover - 17 oz
Seachem De-Nitrate - Nitrate Remover - 17 oz ('116013307)

SeaChem De-Nitrate removes nitrates, nitrites, ammonia, and organics from both freshwater and marine aquariums. The high porosity of De-Nitrate supports the proliferation of both aerobic and anaerobic bacteria that further remove these toxic aquarium byproducts.

  • Removes nitrates, nitrites, ammonia and organics
  • Supports growth of beneficial bacteria that eliminate toxins
  • Suitable for fresh and saltwater tanks

Even when exhausted as an organic adsorbent, SeaChem De-Nitrate continues to be an excellent support for the biological filter and does not have to be removed.

Directions: Place De-Nitrate to assure the flow of water through it, such as in a canister filter, chemical filtration module, or box filter. Flow rate should not exceed 200 L (50 gallons) per hour. If higher flow rates are unavoidable, use Matrix or Pond Matrix. It is best to rinse off dust before use. Once De-Nitrate has been used for several days, nitrate concentrations should start to fall and level off gradually at a concentration of 4-5 mg/L as nitrate. As long as nitrate concentrations remain under control, the product is not exhausted. Each 500 mL of De-Nitrate treats about 100-200 L (25-50 gallons), depending on initial nitrate concentration and the current biological load. Enough should be used to remove nitrate at a rate at least as fast as the rate of formation. If very high nitrates are initially present, they should be brought down to less than 20 mg/L with water changes.

Seachem De-Nitrate - Nitrate Remover
$18.34
Seachem De-Nitrate - Nitrate Remover - 8.5 oz
Seachem De-Nitrate - Nitrate Remover - 8.5 oz ('116013604)

SeaChem De-Nitrate removes nitrates, nitrites, ammonia, and organics from both freshwater and marine aquariums. The high porosity of De-Nitrate supports the proliferation of both aerobic and anaerobic bacteria that further remove these toxic aquarium byproducts.

  • Removes nitrates, nitrites, ammonia and organics
  • Supports growth of beneficial bacteria that eliminate toxins
  • Suitable for fresh and saltwater tanks

Even when exhausted as an organic adsorbent, SeaChem De-Nitrate continues to be an excellent support for the biological filter and does not have to be removed.

Directions: Place De-Nitrate to assure the flow of water through it, such as in a canister filter, chemical filtration module, or box filter. Flow rate should not exceed 200 L (50 gallons) per hour. If higher flow rates are unavoidable, use Matrix or Pond Matrix. It is best to rinse off dust before use. Once De-Nitrate has been used for several days, nitrate concentrations should start to fall and level off gradually at a concentration of 4-5 mg/L as nitrate. As long as nitrate concentrations remain under control, the product is not exhausted. Each 500 mL of De-Nitrate treats about 100-200 L (25-50 gallons), depending on initial nitrate concentration and the current biological load. Enough should be used to remove nitrate at a rate at least as fast as the rate of formation. If very high nitrates are initially present, they should be brought down to less than 20 mg/L with water changes.

Seachem De-Nitrate - Nitrate Remover
$5.28
Seachem De-Nitrate - Nitrate Remover - 34 oz
Seachem De-Nitrate - Nitrate Remover - 34 oz ('116013703)

SeaChem De-Nitrate removes nitrates, nitrites, ammonia, and organics from both freshwater and marine aquariums. The high porosity of De-Nitrate supports the proliferation of both aerobic and anaerobic bacteria that further remove these toxic aquarium byproducts.

  • Removes nitrates, nitrites, ammonia and organics
  • Supports growth of beneficial bacteria that eliminate toxins
  • Suitable for fresh and saltwater tanks

Even when exhausted as an organic adsorbent, SeaChem De-Nitrate continues to be an excellent support for the biological filter and does not have to be removed.

Directions: Place De-Nitrate to assure the flow of water through it, such as in a canister filter, chemical filtration module, or box filter. Flow rate should not exceed 200 L (50 gallons) per hour. If higher flow rates are unavoidable, use Matrix or Pond Matrix. It is best to rinse off dust before use. Once De-Nitrate has been used for several days, nitrate concentrations should start to fall and level off gradually at a concentration of 4-5 mg/L as nitrate. As long as nitrate concentrations remain under control, the product is not exhausted. Each 500 mL of De-Nitrate treats about 100-200 L (25-50 gallons), depending on initial nitrate concentration and the current biological load. Enough should be used to remove nitrate at a rate at least as fast as the rate of formation. If very high nitrates are initially present, they should be brought down to less than 20 mg/L with water changes.

Seachem De-Nitrate - Nitrate Remover
$24.90
Seachem De-Nitrate - Nitrate Remover - 68 oz
Seachem De-Nitrate - Nitrate Remover - 68 oz ('116013802)

SeaChem De-Nitrate removes nitrates, nitrites, ammonia, and organics from both freshwater and marine aquariums. The high porosity of De-Nitrate supports the proliferation of both aerobic and anaerobic bacteria that further remove these toxic aquarium byproducts.

  • Removes nitrates, nitrites, ammonia and organics
  • Supports growth of beneficial bacteria that eliminate toxins
  • Suitable for fresh and saltwater tanks

Even when exhausted as an organic adsorbent, SeaChem De-Nitrate continues to be an excellent support for the biological filter and does not have to be removed.

Directions: Place De-Nitrate to assure the flow of water through it, such as in a canister filter, chemical filtration module, or box filter. Flow rate should not exceed 200 L (50 gallons) per hour. If higher flow rates are unavoidable, use Matrix or Pond Matrix. It is best to rinse off dust before use. Once De-Nitrate has been used for several days, nitrate concentrations should start to fall and level off gradually at a concentration of 4-5 mg/L as nitrate. As long as nitrate concentrations remain under control, the product is not exhausted. Each 500 mL of De-Nitrate treats about 100-200 L (25-50 gallons), depending on initial nitrate concentration and the current biological load. Enough should be used to remove nitrate at a rate at least as fast as the rate of formation. If very high nitrates are initially present, they should be brought down to less than 20 mg/L with water changes.

Seachem De-Nitrate - Nitrate Remover
$37.50
Seachem Purigen Ultimate Filtration Powder - 68 oz
Seachem Purigen Ultimate Filtration Powder - 68 oz ('116016803)

Seachem Purigen Ultimate Filtration is a premium synthetic adsorbent that, unlike any other filtration product, is not a mixture of ion exchangers or adsorbents, but a unique macro-porous synthetic polymer that removes soluble and insoluble impurities from water at a rate and capacity that exceeds all others by over 500%.

  • Removes soluble and insoluble impurities from water
  • Controls ammonia, nitrites, nitrates
  • Polishes water to unparalleled clarity

Purigen controls ammonia, nitrites and nitrates by removing nitrogenous organic waste that would otherwise release these harmful compounds. Purigens impact on trace elements is minimal. It significantly raises redox. It polishes water to unparalleled clarity. Purigen darkens progressively as it exhausts, and is easily renewed by treating with bleach. Purigen is designed for both marine and freshwater use.

Why Its Different:

  • Selectivity: Purigen is the highest capacity organic filtration resin on the market. No other products can compare to its ability to clear haziness and polish water to unparalleled clarity. Unlike other products on the market which are simple ion-exchange resins, Purigen is specifically designed to be an organic scavenging resin. When ion-exchange resins are filled to capacity by metals and other contaminants, Purigen has barely begun to reach its potential. Purigen generally ignores simple elemental compounds, having an extreme affinity for nitrogenous organics. The primary source of nitrogenous compounds in an aquarium is waste. Fish, corals, even plants produce nitrogenous waste. Purigen removes that waste faster and more completely than anything else on the market.
  • Capacity: Purigens possesses enhanced capacity owing to its vast surface area. All other resins on the market are purely spherical extruded beads. These beads remain smooth even under a microscope. Purigen is both spherical and macroreticular. It has microscopic pores that increase its usable surface area to many times that of a purely spherical resin.
  • Regeneration: Purigen can also be regenerated. As it adsorbs waste products, Purigen will change color from a pale blonde to a dark brown, almost black. Once it is exhausted, it can be regenerated with a solution of bleach and water. The bleach will literally “burn off" the organics that have been removed from the tank. Watch out for products that claim to be regenerable with a brine solution. That is the regeneration procedure for ion-exchange purposes. A brine solution will not remove organics. While such resins have a limited capacity for organic adsorption, a brine regeneration process only replaces removed ionic compounds. It does not destroy large organic molecules that were removed, which is the primary function of organic adsorption resins.

Directions:
Rinse before use. Use in a fine mesh filter bag. Each 1 L treats up to 4,000 L (1,000 gallons) for up to six months. Exhaustion is indicated by a pronounced discoloration of the beads to dark brown or black.

Regeneration: Soak in a 1:1 bleach:water solution for 24 hours in a non-metalic container in a well ventilated area and away from children. Rinse well, then soak for 8 hours with a solution containing 2 tablespoons of ChlorGuard, Prime, or equivalent dechlorinator per cup of water. Rinse well. Original color and full activity should now be restored and Purigen is ready for reuse. Caution: some slime coat products may permanently foul Purigen and render regeneration difficult. Do not reuse if odor of chlorine is detectable. In case of doubt, soak beads in small quantity of water and test for residual chlorine with a chlorine test kit.

Dosage:
100 ml (Media Bag): Treats 106 Gallons
250 ml: Treats 265 Gallons
500 ml: Treats 530 Gallons
1 Liter: Treats 1,060 Gallons
2 Liters: Treats 2,120 Gallons

Seachem Purigen Ultimate Filtration Powder
$122.68
Seachem Garlic Guard Garlic Additive - 3.4 oz
Seachem Garlic Guard Garlic Additive - 3.4 oz ('116017503)

Seachem Garlic Guard is an appetite and flavor enhancer for freshwater and saltwater fish. Garlic Guard contains allicin (the naturally derived, active ingredient found in garlic), which has been demonstrated to possess health-promoting benefits, and will help renew the interest of poor or finicky eaters.

  • Garlic additive and flavor enhancer
  • Renews interest of poor or finicky eaters
  • Suitable for fresh or saltwater; reef and plant safe

Allicin possesses strong antioxidant properties (similar to Vitamin C) which promote enhanced health through elimination of free radicals. For enhanced health benefits, Seachem Garlic Guard also contains Vitamin C. Safe for freshwater, marine and reef aquariums.

Directions for Use: Shake well before use. Soak food in Garlic Guard before feeding.

Guaranteed Analysis:
Garlic Extract - 9900 ppm
Allicin (active ingredient) - 130 ppm
Vitamin C - 1000 ppm

Seachem Garlic Guard Garlic Additive
$5.02
Seachem Garlic Guard Garlic Additive - 17 oz
Seachem Garlic Guard Garlic Additive - 17 oz ('116017305)

Seachem Garlic Guard is an appetite and flavor enhancer for freshwater and saltwater fish. Garlic Guard contains allicin (the naturally derived, active ingredient found in garlic), which has been demonstrated to possess health-promoting benefits, and will help renew the interest of poor or finicky eaters.

  • Garlic additive and flavor enhancer
  • Renews interest of poor or finicky eaters
  • Suitable for fresh or saltwater; reef and plant safe

Allicin possesses strong antioxidant properties (similar to Vitamin C) which promote enhanced health through elimination of free radicals. For enhanced health benefits, Seachem Garlic Guard also contains Vitamin C. Safe for freshwater, marine and reef aquariums.

Directions for Use: Shake well before use. Soak food in Garlic Guard before feeding.

Guaranteed Analysis:
Garlic Extract - 9900 ppm
Allicin (active ingredient) - 130 ppm
Vitamin C - 1000 ppm

Seachem Garlic Guard Garlic Additive
$23.26
Seachem Garlic Guard Garlic Additive - 8.5 oz
Seachem Garlic Guard Garlic Additive - 8.5 oz ('116017602)

Seachem Garlic Guard is an appetite and flavor enhancer for freshwater and saltwater fish. Garlic Guard contains allicin (the naturally derived, active ingredient found in garlic), which has been demonstrated to possess health-promoting benefits, and will help renew the interest of poor or finicky eaters.

  • Garlic additive and flavor enhancer
  • Renews interest of poor or finicky eaters
  • Suitable for fresh or saltwater; reef and plant safe

Allicin possesses strong antioxidant properties (similar to Vitamin C) which promote enhanced health through elimination of free radicals. For enhanced health benefits, Seachem Garlic Guard also contains Vitamin C. Safe for freshwater, marine and reef aquariums.

Directions for Use: Shake well before use. Soak food in Garlic Guard before feeding.

Guaranteed Analysis:
Garlic Extract - 9900 ppm
Allicin (active ingredient) - 130 ppm
Vitamin C - 1000 ppm

Seachem Garlic Guard Garlic Additive
$9.94
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