Larger pieces feed the fish! Fine particles feed the reef! MARINE FUSION is a partner to the SPIRULINA/BRINE SHRIMP/MYSIS product. Where the SP/BS/MY is green for herbivores, MARINE FUSION is reddish brown, full of meaty seafoods, and intended for more carnivorous appetites. The finer particles will feed the corals and invertebrates and the regular bite-size pieces feed the fish...hence, the FUSION. INGREDIENTS: Brine Shrimp, Artemia sp., Krill Superba, Krill Pacifica, Mysis shrimp, Squid, Mussels, Seaweed, HUFA Supplement, Potassium ascorbate. (source of Stabilized vitamin C).