Saki-Hikari Color Enhancing Diet is a professional use daily diet for koi offering aggressive color enhancement without negatively impacting the shiroji. It offers color enhancement of the Hiban (red areas) with no negative impact on the Shiroji (white areas). This uniquely blended formulation offers a unique balance of proteins, carbohydrates, amino acids, probiotics, and fats to provide your koi with their best chance at the excellent form and championship-grade color. It has the proprietary "Hikari-Germ" a live (viable) naturally occurring microorganism (probiotic) and a uniquely blended ingredient mix offering better nutrient utilization.