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Reef Calcium™ is a concentrated (50,000 mg/L) bioavailable polygluconate complexed calcium intended to maintain calcium in the reef aquarium without altering pH. Additionally, polygluconate contains no nitrogen or phosphorous, thus it is biologically impossible for it to lead to algae growth in a properly maintained reef system.

1. Liquid organic calcium source
2. Maintains calcium and accelerates coral growth
3. Concentrated (50,000mg/L)

Variety:

• SEA356 Seachem Reef Calcium – 250mL
• SEA353 Seachem Reef Calcium – 500mL