Spirulina is popularly known to be a color enhancer ingredient in feeds. The ToMiGai variant of Spirulina, like the Wheat Germ variant, contains a minimum of 50% protein, which similarly promotes the proper growth and development of the body conformation of your Koi. ToMiGai Spirulina contains a minimum of 7% Spirulina content, which actively promotes the thickening and brightening of a Kois natural pattern and color quality. This variant is similarly best used during the summer time.