Red Sea

Reef Foundation A (Ca/Sr)

Grouped product items
500 mL Reef Foundation A (Ca/Sr)

SKU: 207444

In stock


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1000mL Reef Foundation A (Ca/Sr)

SKU: 210930

In stock


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5000mL Reef Foundation A (Ca/Sr)

SKU: 210935

In stock


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Red Sea Foundation A is a component of the Red Sea Reef Foundation program for healthy and vibrant corals. Red Sea Foundation A is a blend of Calcium & Strontium salts in the proper ratio for seawater.


Three Sizes Available

  • 500mL
  • 1000mL
  • 5000mL


Red Sea Reef Foundation is based from years of biological analysis of corals and what they require for growth. From their results, they have been able to formulate the Reef Foundation system for Calcium, Alkalinity, and Magnesium maintenance in reef tanks. Using ultra pure raw products, Red Sea has packaged the additives in ready to use bottles and jugs that you can dose directly out of with no mixing required.


Dosing Instructions: 1mL will raise the Calcium level of 25 gallons by 2 ppm.


Reef Foundation A - Calcium and Strontium

Reef Foundation B - Alkalinity

Reef Foundation C - Magnesium


For a complete trace element system, we recommend using Red Sea Coral Colors A, B, C, & D along with the Reef Foundation System.


Red Sea Reef Foundation Manual


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