TetraColor Plus Tropical FlakesAroma and flavor of real shrimp are a natural attractant for aquarium fish. Specialized, high protein fish meal makes this Tetra's most digestible flake food ever. Optimal digestibility means fewer uneaten particles and reduced fish waste for cleaner, clearer water. TetraColor Plus Tropical Flakes also includes patented, scientifically developed ProCare blend. This mix of highly nutritious ingredients with added vitamins, minerals and trace elements help support the immune system for optimal health and long life. TetraColor Plus Tropical Flakes also enhance naturally brilliant colors.