Red Sea Reef Foundation C (Mg) – 1 kg
A magnesium complex for balanced formation of coral skeletons. Maintaining balanced levels of the foundation elements (ca, kh & mg) creates optimal water conditions for promoting strong and healthy coral growth.
Reef Foundation C is a powder magnesium complex designed for balanced skeleton formation in reef aquariums. Recommended for aquariums over 500 liters (125 gallons).
| Component | Quantity |
|---|---|
| Magnesium (Mg) | 1 kg |
| Recommended Use | Aquariums over 500 liters (125 gal) |
| Form | Powder |
FAQ
What is the recommended dosage for Reef Foundation C?
Please contact customer service
Can Reef Foundation C be used with other water parameters like calcium or KH?
Yes, Reef Foundation C is designed to work in conjunction with calcium and KH to maintain balanced foundation elements for coral growth.
Is Reef Foundation C suitable for all types of reef tanks?
It is recommended for aquariums over 500 liters (125 gallons). Smaller tanks may require different supplementation strategies.

Anna Davidson –
Used Reef Foundation C in my 600-liter reef tank for three months. The magnesium levels stayed stable and my corals grew steadily. Easy to mix and no clumping. A reliable supplement for maintaining skeletal health.
Blake Mackay –
Good product for magnesium support. I added it weekly to my 550-liter tank. Corals showed better coloration and structure. Slightly more expensive than other brands, but effective.
Andrea King –
This powder dissolves well and keeps magnesium levels consistent. I’ve used it alongside calcium and KH supplements. My polyps are more active and the skeleton formation is stronger.