Fluval Bug Bites Insect Color Enhancing Granules for Medium-Large Tropical Fish Food are nutritionally balanced fish food designed to intensify the natural colors of aquarium fish. Made with insect larvae as the main ingredient, these granules are rich in protein and fortified with key vitamins and minerals. The formula’s natural pigments and quality nutrients help brighten fish coloration while ensuring healthy growth and strong immune function. Available in Multiple Sizes