The 5.29 ounce container of Tropical Marine Power Spirulina Formula Granules has been designed specifically as a nutrient rich food source for herbivorous and omnivorous marine fish. The food contains 36% spirulina and the spirulina contains upwards of 70% protein rich amino acids such as lysine, leucine and threonine, all of which help to promote fish growth and proper development. The formula also contains unsaturated fatty acids, polyunsaturated fatty acids and carotenoids that positively contribute to immunity, reproduction, digestion, coloration and many other physiological processes. When used on a regular basis, the Tropical Marine Power Spirulina Formula Granules aids in digestion and contributes to the beautiful, vibrant colorations of the fish. The formula has a low phosphorus content which helps to reduce the risk of chemical imbalance in the tank.