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Reef Element

Foundation C | Magnesium Supplement

Foundation C | Magnesium Supplement

Regular price $19.99 USD
Regular price Sale price $19.99 USD
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Magnesium supplement for balanced formation of coral skeleton

It’s all in the balance

  • 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.
  • Red Sea’s MAGNESIUM 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 (25 gal) by 1ppm.
  • Powder supplement: 1g will raise the Mg level of 100 liters (25 gal) 1.34ppm.
  • 1 kg will make 1.7L of stock solution.

Package size/volume:

  • 500 ml (16.9 fl. Oz.)
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