Koi eat a varied diet that supports their growth, coloration, and overall health. In a well-balanced pond, they naturally forage for algae, insects, larvae, and plant material, which gives them a constant source of nutrition. To supplement this natural diet, you should provide high-quality commercial koi food that is formulated with the right balance of protein, fats, vitamins, and minerals. Pellets are the most common form and come in different sizes and formulas tailored to the koi’s age and the season.
During warmer months, koi benefit from higher-protein foods to support active growth, while in cooler temperatures, wheat germ-based food is easier to digest. Treats like peas, lettuce, watermelon, and even shrimp can be offered occasionally, but should not replace a balanced pellet diet. Feeding a variety of foods helps enhance their color and vitality. It’s important to avoid feeding koi bread, crackers, or anything with preservatives, as these can cause digestive problems and pollute the pond.
