Spirulina is a blue-green algae that is added to moist fish feeds or fed to invertebrates. CAUTION: It is very easy to overfeed your invertebrates or fry with dry feeds, including spirulina. Use this product very sparingly at first and adjust accordingly. For better control of feeding levels and for better dispersion in your tank, premix a small amount of spirulina in a blender with fresh water, then add a small amount of the resulting solution to your tank. Spirulina powder contains valuable nutritional, medicinal, and color-enhancing compounds of interest to fish-keepers. Spirulina is particularly rich in carotenoid and xanthophyll pigments, factors which are important in attaining bright skin colors in captive fish. Not for human consumption. PROXIMATE ANALYSIS: Protein, 59.2%; Fat, 5.74%; Ash, 7.2; Moisture, 8.87%