Instant Ocean Calcium Booster

Calcium Booster is a concentrated formula that quickly and safely increases calcium levels in your marine aquarium. Corals, coralline algae, clams, and other reef inhabitants require calcium for skeletal growth. Contains no nitrates, phosphates, or silicates. Calcium Booster is simple to use, with no complicated reactors or messy powders to deal with. It is recommended to maintain free calcium levels between 400-450 ppm. Use as needed to raise calcium levels in marine aquariums.