Your discus, eels, betas, loaches and other community freshwater fish will thrive on this primary food. Choice for community tanks. Bloodworms are a natural product that may cause allergic reaction in some people. Recommended for all Freshwater Angels, Discus, Barbs, Cichlids, Gouramis, Live Bearers, Loaches, Eels, Catfish, Tetras, Sharks & Silver Dollars and all Saltwater Angelfish, Butterflyfish, Damsels, Clownfish, Groupers, and Eels.