Marine Buffers & pH Adjusters
Aqua Premium’s Marine Buffers & pH Adjusters range provides Australian retailers and reef specialists with a professional wholesale selection of marine alkalinity buffers, calcium supplements, and pH stabilisers for saltwater aquarium systems. Maintaining stable alkalinity (dKH) and pH is fundamental to coral health and calcification — making marine buffers a critical consumable for reef aquarium operations. Brands include Seachem, AquaVitro, and Easy-Life, covering two-part dosing components, alkalinity buffers, and reef chemistry management products. Fast dispatch to all Australian states and territories. Trade and wholesale accounts welcome — contact us for volume pricing.
Showing all 18 resultsSorted by latest
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Seachem Reef Fusion 2 4L
Provides 100,000 mg/L of ionic calcium
Restores and maintains alkalinity
Most concentrated two part system; simple 1:1 ratioBoxes of 2
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Seachem Reef Fusion 2 2L
Provides 100,000 mg/L of ionic calcium
Restores and maintains alkalinity
Most concentrated two part system; simple 1:1 ratioBoxes of 4
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Seachem Reef Fusion 1 4L
Provides 100,000 mg/L of ionic calcium
Restores and maintains alkalinity
Most concentrated two part system; simple 1:1 ratioBoxes of 2
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Seachem Reef Carbonate 2L
Raises carbonate alkalinity (KH)
Concentrated (4,000 meq/L)
Made with a blend of carbonate and bicarbonate saltsBoxes of 4
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Seachem Reef Fusion 1 2L
Provides 100,000 mg/L of ionic calcium
Restores and maintains alkalinity
Most concentrated two part system; simple 1:1 ratioBoxes of 4
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Seachem Marine Buffer 250g
Raises and maintains pH at 8.3 in all saltwater aquariums
Can be used safely in reef tanks
Contains borate for added stability
Contains magnesium to alleviate precipitation effectsBoxes of 25
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Seachem Marine Buffer 500g
Raises and maintains pH at 8.3 in all saltwater aquariums
Can be used safely in reef tanks
Contains borate for added stability
Contains magnesium to alleviate precipitation effectsBoxes of 12
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Seachem Reef Builder 600 g
Seachem Reef Builder™ is a reef-safe alkalinity supplement that raises carbonate hardness (KH) without immediately affecting pH, helping to stabilize it at 8.3 over time.
It supports coral growth, prevents pH fluctuations, and does not deplete calcium, magnesium, or strontium, making it an essential tool for maintaining a healthy reef aquarium.
Boxes of 12
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Seachem Reef Builder 300 g
Seachem Reef Builder™ is a reef-safe alkalinity supplement that raises carbonate hardness (KH) without immediately affecting pH, helping to stabilize it at 8.3 over time.
It supports coral growth, prevents pH fluctuations, and does not deplete calcium, magnesium, or strontium, making it an essential tool for maintaining a healthy reef aquarium.
Boxes of 25
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Seachem Reef Buffer 4 kg
Reef Buffer™ effectively raises reef system pH to a stable 8.3 due to its unique blend of carbonate and bicarbonate salts, unlike competing sodium bicarbonate products. This blend results in a higher pK of 8.6, which is crucial for counteracting the greater production of organic acids in reef environments that tend to lower pH. While Reef Buffer™ also increases carbonate alkalinity, Reef Builder™ or Reef Carbonate™ are better suited for alkalinity supplementation when pH is already optimal.
Boxes of 2
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Seachem Reef Builder 4kg
Seachem Reef Builder™ is a reef-safe alkalinity supplement that raises carbonate hardness (KH) without immediately affecting pH, helping to stabilize it at 8.3 over time.
It supports coral growth, prevents pH fluctuations, and does not deplete calcium, magnesium, or strontium, making it an essential tool for maintaining a healthy reef aquarium.
Boxes of 2 Available
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Aqua-Pics General KH Buffer 10kg
Aqua-Pics General KH Buffer 10kg is a phosphate-free alkaline solution designed to gently raise carbonate hardness (KH) in aquariums, particularly beneficial for planted tanks utilizing CO2 injection. This buffer stabilizes pH and counteracts acidity, minimizing stress on fish and promoting a healthy aquatic environment.
- Product Name: Aqua-Pics General KH Buffer 10kg
- Part Number / SKU: 113129
- Capacity: 10kg
- Type: Alkaline Buffer
- Compatibility: Suitable for both fresh and salt water aquariums
- Effect: Raises KH (carbonate hardness) by approximately 1dKH per dose (18ppm)
- pH Stabilization: Counteracts acidity from CO2 injection
- Dosing: 1 level teaspoon or 5g to 60 litres of water raises KH by approximately 1dKH or 18ppm
- Caution: Use cautiously in small doses for planted tanks to avoid large pH swings
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Seachem Reef Buffer 1kg
Reef Buffer™ is designed to safely raise and stabilize the pH in a reef aquarium to 8.3 without the risk of overshooting. Unlike competing products, it uses a specific blend of carbonate and bicarbonate salts which results in a higher pK of 8.6. This higher pK is more effective at counteracting the organic acids produced by reef inhabitants, ensuring greater pH stability in a heavily populated system
Boxes of 12
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Seachem Reef Buffer 250g
Reef Buffer™ is designed to safely raise and stabilize the pH in a reef aquarium to 8.3 without the risk of overshooting. Unlike competing products, it uses a specific blend of carbonate and bicarbonate salts which results in a higher pK of 8.6. This higher pK is more effective at counteracting the organic acids produced by reef inhabitants, ensuring greater pH stability in a heavily populated system
Boxes of 25 Available
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Seachem Reef Buffer 500g
Reef Buffer™ is designed to safely raise and stabilize the pH in a reef aquarium to 8.3 without the risk of overshooting. Unlike competing products, it uses a specific blend of carbonate and bicarbonate salts which results in a higher pK of 8.6. This higher pK is more effective at counteracting the organic acids produced by reef inhabitants, ensuring greater pH stability in a heavily populated system
Boxes of 12 Available
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Seachem Reef Builder 1.2kg
Seachem Reef Builder™ is a reef-safe alkalinity supplement that raises carbonate hardness (KH) without immediately affecting pH, helping to stabilize it at 8.3 over time.
It supports coral growth, prevents pH fluctuations, and does not deplete calcium, magnesium, or strontium, making it an essential tool for maintaining a healthy reef aquarium.
Boxes of 12 Available
