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 positive coral health and growth. Reef Foundation C contains blended salts of magnesium and is part of Red Sea's complete Reef Care Program.
Liquid supplement: 1ml will raise the Mg level of 100 liters (25gal) by 1ppm.
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