Hikari's frozen Krill retain their natural shape and color, making them irresistible to fish. Hikari's unique 3 Step Sterilization process assures unequalled product quality and a food free of parasites, harmful bacteria and foul odor. Bio-Pure diets are packed in pure water and will not foul the aquarium. Bio-Pure frozen foods are Bio-Encapsulated with Multi-Vitamins similar to gut loading, providing maximum nutrition for your fish.