Use ESV Calcium Chloride to maintain proper calcium levels in your reef tank. It is essential to maintaining a healthy tank and promoting fast coral growth. ESV Calcium Chloride is a pure inorganic compound used to raise dissolved calcium levels in your tank.
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The differences between food grade and standard aquarium grade are not that different other than the process to create the Calcium chloride. The Food grade is under stricter regulations in the production process. Feel free to let us know if you have any further questions!