Slow Dissolving Promotes Natural Scraping Habits No Preservatives, No Hormones This food contains spirulina blue-green algae, green pea and even wood products to encourage the natural eating habit of plecos and other catfish. Xtreme Bottom Wafers are also great for loaches, corydoras, shrimp and even livebearer fry based on our own testing. It holds it shape underwater a bit better than competing products as well. It is fast to sink and slow to dissolve. Ingredients: Pea Protein, Fish Meal, Shrimp Meal, Grain Distillers Dried Yeast, Rice Flour, Dried Kelp, Algae Meal- Dried, Paprika, dl-Methionine, Soy Lecithin, Soy Oil, L-Lysine, Vitamin A Acetate, Vitamin D3 Supplement, dl-Alpha Tocopheryl Acetate (Vitamin E Supplement), Vitamin B12 Supplement, Riboflavin, Niacin, Calcium Pantothenate, Menadione Sodium Bisulfite Complete (source of Vitamin K Activity), Folic Acid, Thiamine Mononitrate, Pyridoxine Hydrochloride, Biotin, Manganese Proteinate, Calcium Carbonate, Sodium Selenite, Red 30, Xanthophyll, Canthaxanthin, Astaxanthin, Beta Carotene   Guaranteed Analysis  Crude Protein Min. 38% Crude Fat Min. 5% Crude Fiber Max. 12% Ash Max. 12% Moisture Max. 12% Phosphorus Min. 0.9%