Seachem Reef Calcium Accelerate Coral Growth Select:500ml please note that 7kg of

please note that 7kg of Seachem Onyx Sand occupies a volume of approximately 4

optimising water quality

Specially engineered for either concrete or liner-style ponds

maintaining optimal water quality for fish and plants

Seachem Reef Calcium Accelerate Coral Growth Select:500ml please note that 7kg ofReef Calcium is a concentrated (50,000 mg L) bioavailable polygluconate complexed calcium intended to maintain calcium in the reef aquarium without altering pH. Polygluconate complexation confers several benefits: it increases the bioavailability of the calcium, it provides a rich source of metabolic energy to help maintain peak coral growth, and it prevents calcium precipitation alkalinity depletion. Polygluconate contains no nitrogen or phosphorous,