Seachem Nourish 250Ml. Shake well before using. For best results, soak fish food, such as Seachem’s NutriDiet Flakes, in one capful of Nourish daily. water, spirulina (Spirulina platensis), chlorella (Chlorella pyrenoidosa), phosphoric acid, calcium chloride, magnesium chloride, ferrous sulfate heptahydrate, zinc sulfate heptahydrate, copper sulfate pentahydrate, potassium iodide, manganese sulfate.