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Additives by Type: Aquarium Buffer

Aquarium pH Buffer replenishes the carbonate and bicarbonate required to maintain or increase the alkalinity of captive marine systems. Alkalinity (carbonate hardness) in captive marine systems constantly decreases as biological processes remove carbonate, and produce acids that neutralize carbonate. Proper alkalinity should be maintained around 2.5-2.9 me (7-8 dKH) for marine fish tanks and 3.2-3.6 me (9-10 dKH) for reef tanks.

Sometimes aquariums in closed offices and homes maintain a low pH due to the accumulation of carbon dioxide in the air. This excess CO2 dissolves into the aquarium water and depresses the average pH. The Two Little Fishies CDX Carbon Dioxide Adsorption Media helps maintain and elevate aquarium pH by removing CO2 (carbon dioxide) introduced through a protein skimmer. Simply pour the CDX into a tall columnar reactor such as the Two Little Fishies PhosBan Reactor and connect the CDX-filled reactor to your protein skimmer's air intake hose. You can use the Two Little Fishies CDX Adaptor or a similar barbed, reducing fitting to connect the air intake for the protein skimmer to the outflow pipe of the reactor.
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Brightwell Aquatics Alkalin8.3 KH Buffer, 2 liters Brightwell Aquatics Alkalin8.3 KH Buffer, 2 liters

Product Code: RBA01007
Brightwell Aquatics Alkalin8.3 KH Buffer is a highly-effective alkalinity(KH)-increasing (”buffer”) solution. 2 liters.

Our Price: $27.22
In Stock
Brightwell Aquatics Alkalin8.3 KH Buffer, 500 ml Brightwell Aquatics Alkalin8.3 KH Buffer, 500 ml

Product Code: RBA01006
Brightwell Aquatics Alkalin8.3 KH Buffer is a highly-effective alkalinity(KH)-increasing (”buffer”) solution. 500 ml.

Our Price: $9.89
In Stock
Brightwell Aquatics Boost pH+ 2 L Brightwell Aquatics Boost pH+, 2 L

Product Code: RRBA01311
Brightwell Aquatics Boost pH+ is a high range pH increaser for all marine aquaria. Allows maintaining a pH of 8.3, 8.4 or 8.5 in difficult tanks without raising alkalinity (when used as directed). 2 liters.

Our Price: $35.51
In Stock
Brightwell Aquatics Boost pH 250 ml Brightwell Aquatics Boost pH+, 250 ml

Product Code: RBA01310
Brightwell Aquatics Boost pH+ is a high range pH increaser for all marine aquaria. Allows maintaining a pH of 8.3, 8.4 or 8.5 in difficult tanks without raising alkalinity (when used as directed). 250 ml.

Our Price: $6.46
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Brightwell Aquatics Boost pH+ 4 L Brightwell Aquatics Boost pH+, 4 L

Product Code: RRBA01313
Brightwell Aquatics Boost pH+ is a high range pH increaser for all marine aquaria. Allows maintaining a pH of 8.3, 8.4 or 8.5 in difficult tanks without raising alkalinity (when used as directed). 4 liters.

Our Price: $60.06
In Stock
Brightwell Aquatics Boost pH 500 ml Brightwell Aquatics Boost pH+, 500 ml

Product Code: RBA01233
Brightwell Aquatics Boost pH+ is a high range pH increaser for all marine aquaria. Allows maintaining a pH of 8.3, 8.4 or 8.5 in difficult tanks without raising alkalinity (when used as directed). 500 ml.

Our Price: $11.62
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Continuum Aquatics Basis Borate Free KH Buffer, 250 grams Continuum Aquatics Basis Borate Free KH Buffer, 250 grams

Product Code: RCO30410
Continuum Aquatics Basis Borate Free KH Buffer is a high quality, multi-component blended true buffering system designed to raise the alkalinity or buffering capacity of marine fish and reef aquariums and automatically regulate the pH. It will hold pH stable over a wide range of conditions providing for safety of the entire system. 250 grams.

List Price: $7.11
Our Price: $5.49
CLEARANCE $3.75
You save $3.36!
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Continuum Aquatics Reef-Sculpture Part B 250 ml Continuum Aquatics Liquid Reef-Sculpture Part B, 250 ml

Product Code: RCO30532
Continuum Aquatics Reef-Sculpture Part B and Reef-Sculpture Part A used together are an ionically balanced calcium and alkalinity control system. This Part B is the alkalinity control half of the system. It should be used with equal amounts of Part A. Unlike many other products which will cause a buildup of chlorides or other ions, Reef-Sculpture will maintain seawater ratios of important ions. When used as directed it will maintain calcium and buffering capacity in the same ratio found in natural seawater. It contains no acetate, gluconates, polygluconates or other unnecessary organics to pollute your aquarium. It is phosphate and nitrate free. 250 ml.

List Price: $6.44
Our Price: $4.98
CLEARANCE $3.39
You save $3.05!
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Continuum Aquatics Reef-Sculpture Part B 500 ml Continuum Aquatics Liquid Reef-Sculpture Part B, 500 ml

Product Code: RCO30533
Continuum Aquatics Reef-Sculpture Part B and Reef-Sculpture Part A used together are an ionically balanced calcium and alkalinity control system. This Part B is the alkalinity control half of the system. It should be used with equal amounts of Part A. Unlike many other products which will cause a buildup of chlorides or other ions, Reef-Sculpture will maintain seawater ratios of important ions. When used as directed it will maintain calcium and buffering capacity in the same ratio found in natural seawater. It contains no acetate, gluconates, polygluconates or other unnecessary organics to pollute your aquarium. It is phosphate and nitrate free. 500 ml.

List Price: $9.22
Our Price: $7.12
CLEARANCE $4.85
You save $4.37!
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Continuum Aquatics Reef-Basis KH Buffer 500 grams Continuum Aquatics Reef-Basis KH Buffer, 500 grams

Product Code: RCO30406
Continuum Aquatics Reef-Basis KH Buffer is a high quality, multi-component blended true buffering system designed to raise the alkalinity or buffering capacity of marine fish and reef aquariums and automatically regulate the pH. It will hold pH stable over a wide range of conditions providing for safety of the entire system. 500 grams.

List Price: $11.95
Our Price: $9.24
CLEARANCE $6.29
You save $5.66!
(Out of Stock)
Coralife (Kent) Superbuffer dKH 250 grams Coralife (Kent) Superbuffer dKH, 250 grams

Product Code: RES00085
Coralife (Kent) Superbuffer dKH is a specially formulated pH buffer and alkalinity or carbonate hardness (KH) builder, designed to adjust the pH of saltwater aquariums to the range of 8.0 to 8.3 and build the KH.

  • Superbuffer dKH is designed to mix clear with little or no cloudiness or precipitation
  • Will not flake on your corals as other competing products can

Our Price: $6.49
In Stock
E.S.V. 32 oz B-Ionic Calcium Buffer System E.S.V. B-Ionic Calcium Buffer System 32 oz

Product Code: RESV00150
The E.S.V. B-Ionic Calcium Buffer is the original, unique, easy to use, two-component liquid supplement system. When using equal volumes of each component, the aquarist can easily maintain calcium and alkalinity levels with no mixing of powders, disruption of ionic balance, or addition of organic chemicals. Each of the bottles is 16 oz.

Our Price: $21.99
In Stock
E.S.V. 64 oz B-Ionic Calcium Buffer System E.S.V. B-Ionic Calcium Buffer System 64 oz

Product Code: RESV00151
The E.S.V. B-Ionic Calcium Buffer is the original, unique, easy to use, two-component liquid supplement system. When using equal volumes of each component, the aquarist can easily maintain calcium and alkalinity levels with no mixing of powders, disruption of ionic balance, or addition of organic chemicals. Each of the bottles is 32 oz.

Our Price: $28.99
In Stock
E.S.V. 2 gallon B-Ionic Calcium Buffer System Concentrate Refills E.S.V. B-Ionic Calcium Buffer System Concentrate Refills 2 gallon

Product Code: RESV00155
The E.S.V. B-Ionic Calcium Buffer is the original, unique, easy to use, two-component liquid supplement system. When using equal volumes of each component, the aquarist can easily maintain calcium and alkalinity levels with no mixing of powders, disruption of ionic balance, or addition of organic chemicals. Each jug is 1 gallon.

Our Price: $42.99
In Stock
E.S.V. 8 gallon B-Ionic Calcium Buffer System Concentrate Refills E.S.V. B-Ionic Calcium Buffer System Concentrate Refills 8 gallon

Product Code: RESV00158
The E.S.V. B-Ionic Calcium Buffer is the original, unique, easy to use, two-component liquid supplement system. When using equal volumes of each component, the aquarist can easily maintain calcium and alkalinity levels with no mixing of powders, disruption of ionic balance, or addition of organic chemicals. Each bucket is 4 gallons.

Our Price: $109.99
In Stock
IceCap Color Changing CO2 Absorbent Media 1 kg IceCap Color Changing CO2 Absorbent Media, 1 kg

Product Code: RIC52083
Struggling with low pH? Frustrated by slow coral growth? The IceCap Color Changing CO2 Absorbent Media is a solution.

This IceCap CO2 Absorbent Media must be used with a CO2 Scrubber, such as the IceCap CO2 Scrubber (it also requires a protein skimmer). The way it works is simple: you just attach the tubing that comes with the scrubber to the air intake on your skimmer. Then, you connect the other end to the CO2 scrubber and you're done. That's it! Now you'll be able to raise the pH of your aquarium and control carbon dioxide.

When the media turns pink, then it's time to replace the media. Or, if your pH drops, it's time to replace the media.

Our Price: $12.00
In Stock
Kent Marine Superbuffer, 250 grams Kent Marine Superbuffer, 250 grams

Product Code: RKM00004
Kent Marine Superbuffer dKH is a specially formulated pH buffer and alkalinity or carbonate hardness (KH) builder, designed to adjust the pH of saltwater aquariums to the range of 8.0 to 8.3 and build the KH. 250 grams.

Our Price: $5.35
(Out of Stock)
Reef Foundation B Alkalinity Buffer Supplement Red Sea Reef Foundation B, Alkalinity Buffer Supplement, 2.2 lb

Product Code: RRS22027
Reef Foundation B is a carbonate and buffer complex for the balanced formation of coral skeletons. It contains a complex of carbonate and other buffers present in seawater that maintain proper alkalinity and pH, and is part of Red Sea's complete Reef Care program. For best results dose according to a measured drop in alkalinity and in conjunction with Reef Foundation A and Reef Foundation C.

Our Price: $24.99
In Stock
Seachem Acid Buffer, 300 gm Seachem Acid Buffer, 300 gm

Product Code: RSC02460
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. 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. 300 gm.

Our Price: $7.07
In Stock
Seachem Acid Regulator, 250 gm Seachem Acid Regulator, 250 gm

Product Code: RSC00760
Seachem Acid Regulator, 250 gm, adjusts pH to the acidic range (4.5–5.5) and softens water by precipitating calcium and magnesium. Acid Regulator supports the establishment of the optimal environment for all acid acclimated species (e.g. neons and other tetras, etc.). For further freshwater environment enhancement, use Fresh Trace to restore the proper level of trace elements and feed NutriDiet Tropical Flakes for thriving, healthy freshwater community fish.

Our Price: $7.24
In Stock
Seachem Marine Buffer 1 Kg Seachem Marine Buffer 1 Kg

Product Code: RSC03470
Seachem Marine Buffer will safely raise marine pH to 8.3. It will not raise pH above 8.3 even if inadvertently overdosed. Marine Buffer is a blended product and is not just sodium bicarbonate or sodium carbonate, commonly sold as a substitute. Such products can raise pH to dangerous levels if not used properly. Marine Buffer contains sodium, magnesium, calcium, strontium, and potassium salts of carbonate, bicarbonate, chloride, sulfate, and borate. 1 Kg.

Our Price: $21.00
In Stock
Seachem Marine Buffer 500 gm Seachem Marine Buffer, 500 gm

Product Code: RSC03430
Seachem Marine Buffer will safely raise marine pH to 8.3. It will not raise pH above 8.3 even if inadvertently overdosed. Marine Buffer is a blended product and is not just sodium bicarbonate or sodium carbonate, commonly sold as a substitute. Such products can raise pH to dangerous levels if not used properly. Marine Buffer contains sodium, magnesium, calcium, strontium, and potassium salts of carbonate, bicarbonate, chloride, sulfate, and borate. 500 gm.

Our Price: $12.13
In Stock
Seachem Reef Buffer 1 kg Seachem Reef Buffer, 1 kg

Product Code: RSC06770
Seachem Reef Buffer will also raise carbonate alkalinity; however, it is intended primarily for use as a buffer in a reef system where the maintenance of a pH of 8.3 is often difficult. When pH is not an issue, Reef Builder should be your first choice for a carbonate alkalinity supplement. Reef Buffer is specifically designed to meet the needs and requirements of the closed reef environment. 1 kg.

Our Price: $21.00
In Stock
Seachem Reef Buffer 250 gm Seachem Reef Buffer, 250 gm

Product Code: RSC06760
Seachem Reef Buffer will also raise carbonate alkalinity; however, it is intended primarily for use as a buffer in a reef system where the maintenance of a pH of 8.3 is often difficult. When pH is not an issue, Reef Builder should be your first choice for a carbonate alkalinity supplement. Reef Buffer is specifically designed to meet the needs and requirements of the closed reef environment. 250 gm.

Our Price: $6.79
In Stock
Seachem Reef Buffer 4 kg Seachem Reef Buffer, 4 kg

Product Code: RSC06790
Seachem Reef Buffer will also raise carbonate alkalinity; however, it is intended primarily for use as a buffer in a reef system where the maintenance of a pH of 8.3 is often difficult. When pH is not an issue, Reef Builder should be your first choice for a carbonate alkalinity supplement. Reef Buffer is specifically designed to meet the needs and requirements of the closed reef environment. 4 kg.

Our Price: $66.43
In Stock
Seachem Reef Builder 1.2 kg Seachem Reef Builder 1.2 kg

Product Code: RSC03670
Seachem Reef Builder raises carbonate alkalinity without immediately impacting on pH. With long term use there will be a tendency to stabilize at pH 8.3. Carbonates and calcium are essential to all coral growth. If either becomes deficient, coral growth will cease, followed by a rapid decline in coral health. Used as directed, Reef Builder will not deplete calcium, magnesium, or strontium which usually tend to precipitate with increasing alkalinity. Reef Builder and Reef Buffer may be used together. Use Reef Builder to raise carbonate alkalinity without affecting pH. Use Reef Buffer to raise carbonate alkalinity and pH. 1.2 kg.

Our Price: $21.00
In Stock
Seachem Reef Builder 300 gm Seachem Reef Builder, 300 gm

Product Code: RSC03660
Seachem Reef Builder raises carbonate alkalinity without immediately impacting on pH. With long term use there will be a tendency to stabilize at pH 8.3. Carbonates and calcium are essential to all coral growth. If either becomes deficient, coral growth will cease, followed by a rapid decline in coral health. Used as directed, Reef Builder will not deplete calcium, magnesium, or strontium which usually tend to precipitate with increasing alkalinity. Reef Builder and Reef Buffer may be used together. Use Reef Builder to raise carbonate alkalinity without affecting pH. Use Reef Buffer to raise carbonate alkalinity and pH. 300 gm.

Our Price: $6.79
In Stock
Seachem Reef Builder 4 kg Seachem Reef Builder, 4 kg

Product Code: RSC03690
Seachem Reef Builder raises carbonate alkalinity without immediately impacting on pH. With long term use there will be a tendency to stabilize at pH 8.3. Carbonates and calcium are essential to all coral growth. If either becomes deficient, coral growth will cease, followed by a rapid decline in coral health. Used as directed, Reef Builder will not deplete calcium, magnesium, or strontium which usually tend to precipitate with increasing alkalinity. Reef Builder and Reef Buffer may be used together. Use Reef Builder to raise carbonate alkalinity without affecting pH. Use Reef Buffer to raise carbonate alkalinity and pH. 4 kg.

Our Price: $66.43
In Stock
Seachem Reef Builder 600 gm Seachem Reef Builder, 600 gm

Product Code: RSC03630
Seachem Reef Builder raises carbonate alkalinity without immediately impacting on pH. With long term use there will be a tendency to stabilize at pH 8.3. Carbonates and calcium are essential to all coral growth. If either becomes deficient, coral growth will cease, followed by a rapid decline in coral health. Used as directed, Reef Builder will not deplete calcium, magnesium, or strontium which usually tend to precipitate with increasing alkalinity. Reef Builder and Reef Buffer may be used together. Use Reef Builder to raise carbonate alkalinity without affecting pH. Use Reef Buffer to raise carbonate alkalinity and pH. 600 gm.

Our Price: $11.55
In Stock
Seachem Reef Fusion 2, 1 liter w/ 50 ml Measuring Cup Seachem Reef Fusion 2, 1 liter w/ 50 ml Measuring Cup

Product Code: RSC12170C
We include a 50 ml (2 fl. oz.) measuring cup for accurately measuring your Seachem Reef Fusion 2.

Seachem Reef Fusion 2 and Reef Fusion 1 are the foundation of a system formulated to provide the essentials for a reef aquarium. You should purchase Seachem Reef Fusion 1 to use in conjunction with Reef Fusion 2. Reef Fusion 1 provides calcium, while Reef Fusion 2 provides alkalinity. When used as directed, Reef Fusion 1 and Reef Fusion 2 will maintain the critical levels of calcium and alkalinity necessary for healthy coral growth, while providing biologically appropriate levels of other elements and trace minerals. 1 liter.

Our Price: $13.00
In Stock
Seachem Reef Fusion 2, 4 Liter Seachem Reef Fusion 2, 4 Liter

Product Code: RSC12190
Reef Fusion 2 provides alkalinity. When used together with Reef Fusion 1 (sold separately) they are the foundation of a system formulated to provide the essentials for the reef aquarium. Reef Fusion 1 provides calcium, while Reef Fusion 2 provides alkalinity.

  • Add 1 ml of Reef Fusion 2 per 25 liters (6.5 US gallons) of water (for reference purposes, the cap holds 5 ml). Add this to a high current area of the tank. Wait a few minutes, then add Reef Fusion 1 in the same manner, 1 ml per 25 L (6.5 US gallons), after shaking well.

Our Price: $29.32
In Stock
Two Little Fishies C-Balance, TWO 128 oz bottles Two Little Fishies C-Balance, TWO 128 oz bottles

Product Code: RTL46502
The Two Little Fishies C-Balance two-part calcium and alkalinity maintenance system adjusts calcium, magnesium and strontium ions to natural seawater ratios, and achieves a balanced ionic residual. Packaged in two 128 oz bottles.

Our Price: $53.31
(Out of Stock)
Two Little Fishies C-Balance, TWO 16 oz bottles Two Little Fishies C-Balance, TWO 16 oz bottles

Product Code: RTL46242
The Two Little Fishies C-Balance two-part calcium and alkalinity maintenance system adjusts calcium, magnesium and strontium ions to natural seawater ratios, and achieves a balanced ionic residual. Packaged in two 16 oz bottles.

Our Price: $25.02
In Stock
Two Little Fishies C-Balance, TWO 32 oz bottles Two Little Fishies C-Balance, TWO 32 oz bottles

Product Code: RTL46252
The Two Little Fishies C-Balance two-part calcium and alkalinity maintenance system adjusts calcium, magnesium and strontium ions to natural seawater ratios, and achieves a balanced ionic residual. Packaged in two 32 oz bottles.

Our Price: $29.88
In Stock
Two Little Fishies CDX Carbon Dioxide Adsorption Media 3 liters Two Little Fishies CDX Carbon Dioxide Adsorption Media, 3 liters

Product Code: RTL40232
Two Little Fishies CDX Carbon Dioxide Adsorption Media helps maintain and elevate aquarium pH by removing CO2 (carbon dioxide) introduced through a protein skimmer. Excess CO2 is a problem because it dissolves into aquarium water amd depresses the average pH. Simply pour the CDX into a tall columnar reactor such as the Two Little Fishies PhosBan Reactor and connect the CDX-filled reactor to your protein skimmer's air intake hose. You can use the Two Little Fishies CDX Adaptor or a similar barbed, reducing fitting to connect the air intake for the protein skimmer to the outflow pipe of the reactor. 3 liters.

Our Price: $32.29
(Out of Stock)
Two Little Fishies CDX Carbon Dioxide Adsorption Media 750 ml Two Little Fishies CDX Carbon Dioxide Adsorption Media, 750 ml

Product Code: RTL40231
Two Little Fishies CDX Carbon Dioxide Adsorption Media helps maintain and elevate aquarium pH by removing CO2 (carbon dioxide) introduced through a protein skimmer. Excess CO2 is a problem because it dissolves into aquarium water amd depresses the average pH. Simply pour the CDX into a tall columnar reactor such as the Two Little Fishies PhosBan Reactor and connect the CDX-filled reactor to your protein skimmer's air intake hose. You can use the Two Little Fishies CDX Adaptor or a similar barbed, reducing fitting to connect the air intake for the protein skimmer to the outflow pipe of the reactor. 750 ml.

Our Price: $22.29
In Stock