Medicarp Color Enhancer is especially koi food, prepared with quality ingredients for maintaining healthy koi and improve body and color. Medicarp Color Enhancer contains Astaxanthin to improve the red color of koi. The Vitamin C in Medicarp Color Enhancer helps protect the white color Koi and sharpen the contrast between the red and the white. Vitamin C also enhances the shine of the skin. It also contains Medicarp Color Enhancer Vitamin E, which helps reduce stress and supports the vitality and energy of Koi. Medicarp Color is manufactured as a floating type Koi feed, retains its shape and does not cloud the water.