A 1.5 mm slow sinking pellet Salt water fish aquariums have many competing ecosystems. Some require higher proteins and some require a range of algae based ingredients. A professional formula, without affecting water chemistry, must provide the vitamens and minerals to promote healthy immune systems and protiens, fats and carbs to promote health and support regular digestive cycles. That's a lot of competing needs and Xtreme Marine PeeWee is an exceptional blend of ingredients that provides this balanced diet while improving appetites of even the most finicky salt water fish. Main Ingredients: Krill Meal, Fish Meal, Wheat Middlings, Wheat, Shrimp Meal, Dehulled Soybean Meal, Wheat Flour, Distillers Dried Grains with Soluables, Brewers Dried Yeast, Spirulina, Monosodium Phosphate, Paprika, Limestone, Xanthophyll, Fish Oil, Lecithin, Salt, Vitamin A Acetate, Vitamin D3 Supplement, di-Alph Tocopheryl Acetate(Vitamin E Supplement), Vitamin B12 Supplement, Riboflavin, Niacin, Caldium Pantothenate, Menadione Sodium Bisulfite Complex(source of Vitamin K activity), Folic Acid, Thiamine Mononitrate, Pyridoxine Hydrochloride, Biotin, Manganese Proteinate, Zinc Proteinate, Copper Proteinate, Calcium Iodate, Iron Proteinate, Cobalt Proteinate, Calcium Carbonate, Sodium Selenite, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Canthaxanthin, Astaxanthin, Beta Carotene Guaranteed Analysis: Protein 38% min, Fat 5% min, Fiber 4.5% max, Moisture 10% max.