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.

Concentration

1ml will raise the Mg level of 100 liters (25gal) by 1ppm.