New Life Spectrum Premium Fish Food is a hormone-free, color enhancing formula. Spectrum food is made with high-quality easily digestible krill, herring and squid protein with all-natural color-enhancing ingredients for a balanced diet that boosts immune system function and enhances the full spectrum of your fishs color. It provides essential elements found in the natural environment that is missing in aquariums. This premium line of fish food is made in the USA, in an FDA approved state-of-the-art facility. All of the ingredients used in New Life Spectrum premium fish foods are thoroughly analyzed and certified, ensuring only the highest grade of quality and purity in each and every container of food.