- Red Sea Foundation C is a component of the Red Sea Reef Foundation program for healthy and vibrant corals. Red Sea Foundation C is a blend of magnesium salts in the proper ratio for seawater. Red Sea’s dry magnesium additive adds magnesium in proper chloride/sulfate proportions when used with the Red Sea Reef Foundation System.
1 kg Powder Magnesium Supplement
Once mixed into solution: 1 mL liquid supplement will raise the Magnesium level of 25 gallons by 1 ppm.