Mazuri Koi Platinum Nugget Diets, 3.5 lb. provides a complete and nutritionally balanced meal designed specifically for koi fish six feet or larger. These small bite-sized pellets are enriched with spirulina algae, wheat germ, vitamin C, and other essential nutrients that promote vibrant coloration and support a healthy aquatic environment. The floating pellets encourage koi to come to the surface of your pond, tank, or aquarium, making it easy to observe them while they feed. This diet helps maintain the overall health and vitality of your koi fish. Model Number: