Blue ridge 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. Color rich contains the same ingredients as the growth food but we've added three proven color enhancers; marigold extract, spirulina, and canthaxanthin. Feed this food for 30 days and watch the reds on your koi and goldfish intensify. available in large pellet only.