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API Marine Calcium 473ml


1 in stock

Calcium is vital for the proper health, growth, and coloration of your fish. API® Marine Calcium is a natural way to increase calcium levels in your reef aquarium, and should be used whenever calcium deficiency is present in your water.

Use API Marine Calcium when water tests show a calcium level below 400ppm mg L in your reef aquarium.


Add 5 ml per 10 gallons of aquarium water.