Dr. G's SPS Max Live Coral and Fish Food SPS MAX is a complex Coral Food, made with Oyster Eggs, Oyster Tissue, Rotifers, Arctic Pods, Phytoplankton, Multi Vitamins, Essential Amino Acids & Garlic, consumed directly by the coral polyp to provide energy for metabolic functions, color & growth. Indispensable for Corals described as "impossible or difficult to feed", stimulating an almost immediate opening of coral polyps and feeding responses. Our all natural SPS MAX is extremely rich in proteins, amino acids, proteins, carotenoid pigment (astaxanthene), vitamins, highly unsaturated fatty acids (HUFAs), polyunsaturated fatty acids (PUFAs), and Omega 3 and 6 fatty acids. Perfect for SPS, zoanthids, soft corals, and other filter feeding invertebrates. The feeding response to SPS MAX from corals, is so strong that it creates a real feeding frenzy. See polyp extension on your corals as they reach out to eat, watch your Corals grow and enhance coloration. SPS MAX contains no Phosphates and will "not" promote unwanted algae.