Reef Plus is a full spectrum reef supplement containing trace elements, vitamins, and amino acids demonstrated to have a positive impact on the growth of corals and other desirable reef creatures. Reef Plus is formulated to provide nutrients available from natural tropical reef waters. Contains vitamin B12, vitamin C, thiamine, inositol, choline, iodide, and other essential constituents at pH 8.3. Reef Plus is nitrate/phosphate free. Guaranteed Analysi: (Amts per 1 g). Vitamins & Lipotropic Factors Minerals, Ascorbic Acid (Vit. C) 5.0 mg Boron 0.096 mg, Thiamin (B1) 0.02 mg Iodine 0.18 mg, Riboflavin (B2) 0.02 mg Iron 0.009 mg, Niacin (B3) 0.25 mg Copper 0.001 mg, Pantothenate (B5) 0.07 mg Zinc 0.005 mg, Vitamin B12 0.9 µg Manganese 0.062 mg, Choline (B4) 0.004 mg Bromide 0.3 mg, Inositol 0.011 mg Cobalt 0.004 mg, Arginine 0.16 mg Molybdenum 0.016 mg, Glutamate 0.9 mg Vanadium 0.0003 mg, Lysine 0.3 mg Nickel 0.00035 mg. Tyrosine 0.19 mg Tin 0.00029 mg, Rubidium 0.001 mg. 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