Tropic Marin® Carbo-Calcium Powder is highly concentrated calcium and alkalinity for dissolving in reverse osmosis water to get the proven  Carbocalcium solution. After dissolving, one single solution can cover all the calcium and alkalinity requirements of a typical reef aquarium without undesirable additional compounds or excess carbon dioxide being produced. This ensures strong growth of corals, coralline algae and other reef organisms.

This high-yield product is suitable for all tank sizes and prevents the side effects of other methods of calcium hardness: the pH remains stable; there is no excess CO2 and there is no risk of unwanted phosphates being introduced through coral breakage. In addition, there is neither a creeping increase in salinity, nor increased oxygen consumption through carbon compounds. After mixing, the resulting solution is suitable for both manual dosage and for dosing pumps.

• Extremely high yield: 1 kg (2.2 lbs.) contains 307 g calcium and approx. 43,000 °dH (alkalinity)

• The pH value remains completely stable

• No phosphates or surplus CO2 are added to the aquarium

• The salinity remains constant (no sodium chloride is created)

• No danger caused by oxygen depletion

• Suitable for all tank sizes

• After mixing, the resulting solution is suitable for both manual dosage and for dosing pumps