Specially formulated for easy digestion during winter months. Includes wheat germ. Smaller 5mm Size for all fish types. * Rich In Vitamins & Minerals, Low levels of Phosphorus To Reduce Environmental Impact * Cool Weather Season Diet: 28% Protein Formulation. Fortified with probiotics to reduce fish waste. * Packaged for Peak Freshness: All varieties of Thrive Koi Nutrition Fish Food Are Packaged In 5lb Poly Bags to maintain peak freshness. Open What You Need & Keep The Rest Sealed For Peak Freshness Until Needed * FedEx Ground or FedEx Home Delivery