Red Sea Foundation C (MAG) is a premium magnesium supplement formulated to support balanced coral skeleton formation. Magnesium, along with calcium, strontium, and carbonate, forms the foundation of healthy coral growth—and all must be present in proper proportion.
This liquid supplement delivers precise dosing: 1ml raises magnesium levels by 1ppm per 100 liters (25 gallons). Part of Red Sea's complete Reef Care Program, Foundation C integrates seamlessly into established calcium and alkalinity protocols to maintain the elemental balance your reef demands.
Ideal for aquarists maintaining SPS, LPS, and mixed reef systems where consistent magnesium availability directly impacts coral coloration, growth rate, and skeletal density.
