Tetra Marine Flakes 52g are formulated for the specific needs of marine fish, containing a blend of marine crustaceans, algae, and vitamins for a complete, balanced diet. As well as providing the correct nutrition for health, colour, and vitality, all Tetra Marine foods are highly digestible in order to reduce waste production. This helps to maintain low nitrate and phosphate levels, and reduces the amount of aquarium maintenance needed. Tetra Marine foods are available in a range of formats, including flakes, granules, and crisps.