8 oz Spirulina Powder. Spirulina is a blue-green algae harvested from controlled environments. 99% Pure! Spirulina powder contains valuable nutritional, medicinal, and color-enhancing compounds of interest to fish-keepers. Spirulina can be 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. It is a great source of amino acids (>45% Protein), pigments (>1,500 mg/kg total carotenoids), vitamins and minerals. Spirulina is particularly rich in carotenoid and xanthophyll pigments, factors which are important in attaining bright skin colors in captive fish. The key benefits in adding spirulina to your fish's diet are: Increased growth, heightened immunity, improved skin and fin appearance, and improved coloring. For home prepared diets, the recommended inclusion levels is 1-3% (by dry weight) for most applications. PROXIMATE ANALYSIS: Protein, 59.2%; Fat, 5.74%; Ash, 7.2; Moisture, 8.87%