Aquatic Arts Sinking Pellets (.5 lb) Spirulina Food for Freshwater Invertebrates (Crayfish, Crabs, Shrimp, Snails), Fish (Cichlid, Tetra) and more SINKING PELLET FOOD: For crabs (panther, hermit, fiddler), crayfish, freshwater fish (cichlid, tetra), shrimp, snails, turtles, axolotl, and more. HIGH QUALITY INGREDIENTS: to maximize color in all types of invertebrates. BULK SUPPLY: Enough food to feed 10-15 shrimp, 1-2 crayfish, or 10-15 snails for over a year. OPTIMUM NUTRITION: Encourages faster growth and breeding. Fortified with calcium for healthy exoskeleton growth. MULTIPURPOSE USE: Ideal for a wide variety of freshwater aquarium pets - including small nano tank animals and large crawfish.