With consistent, uncompromising quality and beautify results in the aquarium, TetraMin Tropical Flakes features patented ProCare formula that helps support fish's immune system for optimal health and long life. With scientifically developed mix of highly nutritious ingredients plus vitamins, minerals and trace elements that's easily digested. Tetra's flake food formulations have been specifically designed to be easily digested by fish and not to leach color, thereby helping to keep aquarium water clean and clear.