Ocean nutrition prime reef flake food is a natural blend of fresh, raw seafood, providing an excellent source of pure marine protein from the coral reefs. It creates an exciting flavour that marine and tropical fish cannot resist; this food will significantly improve coloration and vitality in fishes while boosting the immune system to aid disease resistance. Features: Contains stabilized vitamin C and immune boosters. An excellent source of pure marine protein from the coral reefs. A highly attractive staple food for your marine fish. High protein content and rich in vitamins. Does not cloud the water. Formulated and tested by aquaculture biologists.