Unique vitamin and minor and trace element complex for establishing and replacing substances important to marine invertebrates, including corals, clams, and their allies; these substances are particularly important to biological reactionsDoes not contain minor or trace elements not expressly known to be utilized by marine organisms or take place in chemical interactionsVitamins are present in ratios found in the tissues of filter-feeding marine invertebratesMinor and trace elements are present in natural seawater ratiosComposed of purified water and ultra-high purity materialsFormulated by a marine scientistBasic Instructions: Shake well before using. Add 5 ml (1 capful) per 25 US-gallons of water in the aquarium system weekly for the first four weeks of use; then, gradually increase the dosage to 10 ml per 25 US-gallons per week if desired. When used in this fashion, 250 ml treats up to 1,250 US-gallons (4,732 L)