Cobalt Aquatics Mysis Spirulina Flake Fish Foods are highly palatable formulas for all Marine Herbivores, Omnivores, Fresh Water Tropical Fish. Loaded with nutrient rich ingredients ensuring consistent growth and superior color. Featuring Cobalt's BLUE Flake, which has triple concentration of vitamins that help support a healthy immune system. In addition, Cobalt flakes are packed with Probiotics that support a healthy digestive system. Bigger for Aquarium, healthier fish with less waste for a cleaner aquarium.