Dante Gonzales The Picture I Used Diet Koi fish that are kept as pets are fed peas, lettuce, watermelons, and other fruits and vegetables that float. Koi fish are omnivorous fish, so they can also eat smaller fish. Predators Because koi fish are very colorful, many animals prey on them such as herons, kingfishers, raccoons, cats, foxes, and badgers. Where koi fish live Because Koi fish are now kept as pets, they live in colder waters and well vegetated ponds. Some Koi fish have been release in Antarctica, and are considered pests. How my fish reproduces. The female koi fish lays around one thousand eggs, and of those eggs most are fertilized by the male koi fish. The infant koi fish are called frys’. Do people eat my fish No, they do not. Why my fish is interesting. My fish is interesting, because it is breed to be very colorful. Colors range from the common red and with fish, to fish with blues, purples, golds, and oranges. The average life expectancy of my fish is 20-30 years old, but the oldest fish recorded was 226 years old