Seachem Reef Calcium (250 ml)

Reef Calcium™ is a concentrated (50,000 mg/L) bioavailable polygluconate complexed calcium intended to maintain calcium in the reef aquarium without altering pH. It increases the bioavailability of the calcium, provides a rich source of metabolic energy to help maintain peak coral growth, and 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.