Zoo Med Laboratories AZMAFS05 Aquatrol Spirulina 20 Flake, 0.5-Ounce For everyday Feeding For fresh or Saltwater Fish Food flakes Zoo Med Laboratories Aquatrol Spirulina 20 Flake Spirulina is a blue-green plant plankton rich in raw protein and seven major vitamins In addition, it contains all essential fatty acids and the eight amino acids required for complete nutrition In addition, it contains all essential fatty acids and the eight amino acids required for complete nutrition