Optimum 3 in 1 gives growth, enhances color, and increases immunity formula spirulina is suitable for all carp fish to enhance the coloration of fish and is a special formulation for carp, goldfish, and cichlid. It is nutritionally complete and balanced. Probiotic supplements help in the digestion of food and the absorption of nutrients. Beta-glucans supplements that increase disease resistance and improve growth and performance in fish. Healthy and fully nutritional fish food for all types of fish helps to maintain the natural color and proper growth of fish. Fish food for all tropical fish and koi fish complete and balanced nutritional staple food that maintains the color and shape of tropical fishes.