This special formulation is higher in protein & fat to promote growth and size on your fish. Ingredients: Fish Meal, Fish Oil, Wheat Flour, Wheat Gluten Meal, Mono Ammonium Phosphate, Brewers Yeast, Vitamin A Acetate, Vitamin D3, Vitamin E, Acsorbyl Polyphosphate C, Vitamin E, Zinc Sulphate, Nicotinic Acid, Calcium Pantothenate, Manganese Sulphate, Riboflavin Pyridoxine Hydrochloride (B6), Thimine Mononitrate, Menadione Sodium Bisulfite Complex (Vitamin K), Copper Sulfate, Folic Acid, Calcium Iodate, D-Biotin, Sodium Selenite and Vitamin B12 Supplement, Astaxanthin, Ethoxyquin (Preservative), Chloine Chloride Guaranteed Analysis: Crude Protein 50.0% Min., Crude Fat 18.0% Min., Crude Fiber 1.0% Max., Moisture 10.0% Max., Phosphorus 1.2%., Vitamin D3 (min) 3000 IU/Kg, Vitamin E (min) 350 IU/Kg, Vitamin A (min) 5000 IU/Kg The sizes with Jar after the weight come in a jar. The bulk box comes in one bulk bag in the box. All other sizes come in a FDA approved resealable poly nylon bags that keep you food fresh. When you buy the 1 lb. size you will receive two bags with 1/2 lb. of food in each. When you buy the 5 lb. size you will receive 10 bags with 1/2 lb. of food in each. This allows you to open them up as you need them instead of one big bag that will go stale.