NutriDiet® Tropical Flakes are formulated to provide all essential nutrients for all tropical fish. As with all of the Seachem NutriDiets, Tropical Flakes have Chlorella Algae as an exceptional source of a broad range of vitamins, amino acids as well as all other nutrients required for animal life. Chlorella Algae is considered a potential super food that far surpasses the nutrients delivered by Spirulina Algae common to other diets. Additionally, Tropical Flakes contain GarlicGuard as an appetite stimulant.