Red Sea Reef Foundation C (Mg) 500ml (16.9 fl oz)

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Red Sea’s MAGNESIUM contains blended salts of magnesium and is part of Red Sea’s complete Reef Care Program.

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.

Average Daily Usage per 25gal:

Mixed Reef: 1ml

SPS Frag: 2ml

SPS Dominant: 2ml

Ultra Low Nutrient SPS: 1ml


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

Optimum levels of Mg in ppm according to type of aquarium:

Mixed Reef: 1350

SPS Frag: 1390

SPS Dominant: 1280

Ultra Low Nutrient SPS: 1220

Marine Fish: 1060-1130