CORAL BLEND The Coral Blend is designed for the advanced hobbyist who wants to feed a fish-less frag system or a nano tank without fish. Note that this is a specialty blend that is often misused. If you have fish of any size, one of our other blends, most likely the Original Blend, will be a better choice. Ingredients: Whole shrimp, scallop, whole oyster, whole clam, squid, brine shrimp, plankton, fish eggs, mini-pellets (5 to 1,000 micron), rotifers, baby brine shrimp, Spirulina, omega-3 fatty acids (DHA), astaxanthins, and beta-carotenes.