Calcium, Magnesium, Strontium and Carbonate are the basic foundation elements of coral skeletons. All of these elements need to be available in balanced proportions for coral health and growth.

Reef Foundation C contain blended salts of Magnesium for balanced formation of the coral skeleton and is part of Red Seas Complete Reef Care Program.

For Best results, dose according to a measured uptake of Magnesium and in conjunction with Reef Care Foundation A & B.

Powder: 1g will raise the Mg level of 100 liters 1.34ppm. 1 kg will make 1.7L of stock solution.