Seachem Reef Carbonate 250ml – Alkalinity & KH Booster for Reef Aquariums

Seachem Reef Carbonate 250ml is a highly concentrated alkalinity supplement designed to restore and maintain proper carbonate hardness (KH) in reef aquariums. With a powerful concentration of 4,000 meq/L, it provides essential carbonate and bicarbonate ions required for healthy coral growth and long-term reef stability.

Unlike basic alkalinity products that rely solely on sodium bicarbonate, Reef Carbonate uses a balanced blend of carbonate and bicarbonate salts. This advanced formulation delivers a higher effective pK, helping stabilize aquarium pH in the ideal range of 8.3–8.4—even in closed reef systems where organic waste tends to lower pH.

When used as directed, Reef Carbonate will not deplete calcium, magnesium, or strontium, making it safe for continuous use. It is suitable for beginner, advanced, and expert reef keepers and can be dosed manually or through automated drip systems.

Key Features:

• Raises carbonate alkalinity (KH) in reef aquariums
• Highly concentrated formula (4,000 meq/L)
• Made with a blend of carbonate & bicarbonate salts
• Helps stabilize pH at 8.3–8.4
• Supports healthy coral growth and calcification
• Will not deplete calcium, magnesium, or strontium
• Suitable for beginner to advanced dosing methods

Seachem Reef Carbonate 250ml is a professional-grade alkalinity supplement designed to maintain optimal KH and pH stability in reef aquariums. Its advanced carbonate blend supports coral growth while preventing pH drops common in closed reef systems. A reliable solution for maintaining long-term reef health—available now at Reef freaks.