Types of Fish Food for Koi

Nishikigoi or koi, are popular Japanese pond fish. They are a type of carp with shiny and colorful scales that glisten in clear waters. These fish will feed on a variety of foods from frozen, freeze dried, to commercially prepared. 

Flakes and Pellets

Koi fish can live off a diet of large fish flakes purchased from the pet shop. They will also eat vitamin enriched food sticks and types of sinking fish food pellets. These kinds of foods are good for koi since they are mostly made out of the grains and vitamins. They need these nutrients to keep their body active and their scales bright and colorful. Fish flakes can be stored anywhere in any temperature and will stay fresh for a few months. Keep in mind you must buy large fish flakes, since the goldfish variety is much too small for a koi fish’s diet.

Vegetables and Meat

Koi fish are omnivores and will eat anything from shrimp to carrots. If you are planning to feed your koi lettuce, peas, celery, or even squash, you will need to wash them off to do away with any pesticides. If you are still worried about the veggies making your koi sick, you can boil them lightly for about 5 minutes and let them cool off. Freeze dried or fresh earthworms are another favorite of the koi, and it gives them protein. Oysters and clams are another food idea that should be used sparingly as treats.

Fruit

Koi wouldn’t normally come across or search for fruit in their natural habitat, but giving them a few as a treat won’t hurt. They can eat such fruits as oranges, lemons, grapefruits, papayas, and watermelons. Cut up the fruit in small squares so they’re easier to digest. Since koi are so calm, you can hand feed them the fruit but keep in mind to only feed them fruit weekly. The high acidic count in the fruit can cause their lips to become sore and inflamed causing discomfort.