Solve your calcium supplementation woes without complicated calcium reactors. This single bottle solution simplifies calcium supplementation in marine aquariums. Concentrated, Instant Ocean Calcium Booster safely increases and maintains calcium needed by corals, coralline algae, clams and other reef inhabitants for skeletal growth. Use Instant Ocean Calcium Booster as needed to maintain a recommended free calcium level between 400 and 450 ppm. 8.45 oz treats 2,500 gallons.
Please click on "More Information" for directions for use.