Fluval Color Enhancing Flakes is a high quality, ultra palatable fish food with an effective color-enhancing formula that brings out the best in tropical fish colors. An excellent daily source of healthy nutrition, the fish food also provides a rich supply of proteins, trace elements and antioxidants derived from several key ingredients, including Atlantic Herring and Norwegian Krill. The food also contains highly nutritious kelp, a rich source of omega 3, polyunsaturated fatty acids, proteins and complex carbohydrates. The kelp is harvested in an ecologically responsible way to help preserve ocean stocks and ensure a continuing future supply.