Seachem Reef Buffer – pH & Alkalinity Stabilizer for Reef Aquariums (250g)

Seachem Reef Buffer is a premium-grade powdered buffer formulated specifically for reef aquariums. It raises pH to 8.3 and increases carbonate alkalinity, helping to maintain a stable and healthy environment for corals and marine organisms.

Unlike standard buffers that use only sodium bicarbonate, Reef Buffer contains a blend of carbonate and bicarbonate salts, giving it a pK of 8.6—ideal for reef systems where organic acids tend to lower pH. This makes it especially effective in tanks with high bioloads or dense coral populations.

Key Features:

– Raises and stabilizes pH at 8.3
– Increases carbonate alkalinity
– pK of 8.6 ensures greater buffering capacity
– Designed for reef aquariums with demanding pH needs
– Safe for all marine fish, corals, and invertebrates

Product Specifications:

Brand: Seachem
Weight: 250 g
Form: Powder
Country of Origin: United States

Directions for Use:

Use 5 g (1 level teaspoon) for every 150 L (40 US gallons) to raise pH by approximately 0.1 units and increase alkalinity by ~0.5 meq/L. Dissolve in at least 250 mL of freshwater before adding to the tank. Do not exceed recommended dose without testing pH and alkalinity. Ideal pH range: 8.25–8.30.