Blue Ridge Platinum Pro is a professional, fish meal-based diet formulated for discerning koi keepers that want the very best for their fish. This is a higher protein formula that will provide your koi with exceptional growth, nutrition and coloration. It contains everything needed to keep your fish in top show condition including top quality protein, carbohydrates and amino acids. It contains proven color enhancers Spirulina and Canthaxanthin for superior color enhancement. Also includes Primilac, a probiotic immune stimulant designed to protect koi from sickness and disease. Available in pest-proof 4.5 pound plastic jars and 14 pound plastic buckets with resealable lids.