Seachem Reef Plus Fish & ; Aquatic Life Reef Water Treatment For more than 30 years, aquarium hobbyists have turned to Seachem Laboratories for products designed by chemists and biologists. Help your reef thrive with Seachem Reef Plus. This supplement has trace elements, amino acids, vitamin B12, vitamin C, thiamine, inositol, choline, iodide and other essential nutrients. Designed to provide nutrients found in natural tropical reef waters, Seachem Reef Plus is free of nitrate and phosphate. Ingredients: ascorbic acid, glutamate, niacin, arginine, lysine, tyrosine, pantothenate, riboflavin, thiamin, choline, inositol, Vitamin B12, potassium bromide, potassium iodide, boric acid, manganese sulfate, sodium molybdate, ferric chloride, copper sulfate, zinc sulfate, cobalt sulfate, rubidium chloride, vanadium sulfate, nickel chloride, stannous chloride Guaranteed Analysis: Ascorbic Acid - 5mg Thiamin - 0.02mg Riboflavin - 0.02mg Niacin - 0.25mg Pantothenate - 0.07mg Vitamin B12 - 0.9 ?g Choline - 0.004mg Inositol - 0.911mg Arginine - 0.16mg Glutamate - 0.9mg Lysine - 0.3mg Tyrosine 0.19mg Instructions: Use 1 capful (5 mL) for each 80 L (20 US gallons) twice a week or as required to maintain coral growth. May also be used in food by mixing 1 mL in about 15 mL (1 tablespoon) of food. Refrigerate after opening.