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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. Aquarium Type Average daily usage Liquid ml/100L (25gal) Powder g/100L (25gal) Mixed Reef 1ml 0.75g SPS Frag 2ml 1.5g SPS Dominant 2ml 1.5g Ultra Low nutrient SPS 1ml 0.75g Red Sea’s Foundation Elements Video
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🇺🇸 Ship from USA · On Agora since 2025
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