Mazuri® Koi Platinum Nuggets are a floating koi fish food designed to help keep your koi healthy and beautiful. Ideal for koi 6 inches or larger. This koi fish food provides optimal nutrition and contains nutrients for vibrant coloration. Plus, the floating nuggets encourage fish to come to the surface of your pond, tank, or aquarium. Made with no added artificial flavors and sustainably sourced fishmeal from a supplier certified by the Marine Stewardship Council, you can feel good about feeding your koi fish Mazuri.