Blue Ridge Color Rich Koi and Goldfish Food is the same food used by Blue Ridge Fish Hatchery, America's leading koi and goldfish breeder. Feed your fish these diets and have confidence that they are receiving a nutritionally complete diet that promotes fast growth and maximum health. The Color Rich diet provides a completely balanced diet for all koi and goldfish. In addition, it contains three proven color enhancers; marigold exract, spirulina, and canthaxanthin. Feed this food for 30 days and watch the reds on your koi and goldfish intensify. Available in large pellet only.