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Red Sea Reef Foundation A (Ca/Sr) - Liquid Calcium - 500ml

Red Sea Reef Foundation A (Ca/Sr) - Liquid Calcium - 500ml

Item #: RS-RF-A
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Calcium and strontium complex for balanced formation of the coral skeleton.

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.

Reef Foundation A contains blended salts of calcium and strontium in the ratio required by corals and is part of Red Sea's complete Reef Care Program.

Red Sea’s Reef Foundation Program is built on our years of experience in developing sustainable reef-keeping solutions. In order to achieve optimal water parameters for reef development, appropriate levels of the foundation elements - calcium, magnesium and bicarbonates – need to be maintained. The Reef Foundation Program provides supplements and test kits to achieve optimal water chemistry and coral biological processes, helping you get the results you need.

User Manual


  • 500ml (16.9 oz)


  • 1ml will raise the Ca level of 100 liters (25 gal) by 2ppm

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