Fiji Gold Coral and Live Rock Supplement 20 oz Powder

100 percent natural calcium supplement for reef aquariumsMade from seawater and coral reef substrateContains calcium, magnesium, and other major trace mineralsSafely raise calcium, alkalinity, and pH levels in your reef aquarium. Walt Smith's Fiji Gold is made from 100 percent natural calcium derived from seawater and coral reef substrate - direct from the Fiji Islands. Contains calcium, magnesium, and all major and minor trace minerals in a biologically accessible form to benefit all marine organisms. Use 1 tablespoon per 30 gallons.Please click on "More Information" for directions.