Plant-based foods:
* Algae: A major source of nutrition, especially for young koi. They graze on algae growing on rocks, plants, and pond surfaces.
* Aquatic plants: Water lilies, water hyacinths, and other pond plants are often enjoyed by koi.
* Vegetables: Koi will eat various vegetables, including peas, spinach, zucchini, lettuce, and even cooked sweet potatoes.
Animal-based foods:
* Insect larvae: Mosquito larvae, bloodworms, and other aquatic insects are a favorite.
* Small crustaceans: Daphnia, brine shrimp, and other tiny crustaceans are a good source of protein.
* Fish flakes and pellets: Commercially available koi food is a convenient and balanced option.
* Occasional treats: You can occasionally feed koi with cooked meat (like chicken or beef) and earthworms, but these should be given sparingly.
Important considerations:
* Variety is key: Offering a diverse diet is essential for koi's health and growth.
* Feeding frequency: Feed koi once or twice a day, depending on their size and activity level.
* Overfeeding: Avoid overfeeding, as it can pollute the pond water and lead to health problems.
* Water quality: Maintaining clean pond water is crucial for koi health.
By providing a balanced and varied diet, you can ensure your koi thrive and enjoy a long and healthy life.