How to make koi food

Updated July 20, 2017

Koi is a special breed of the fish known as carp. Carp comes in both fresh and saltwater varieties and can be tiny or huge. Koi are a medium to large variety of carp that can be used for food or decorative purposes. These are the graceful colourful fish that you find in home ponds or pools decorating the sides of gardens. Properly feeding koi is the primary way of insuring longevity for your fish, and making your own koi food will save you a great deal of money.

Take 12 cubes of the freeze dried plankton, mysis, daphnia or brine shrimp or a mixture of a couple of each and add the 12 cubes to the food processor.

Add 1 pound of the mixed seafood to the food processor. Add to the mixture 1 teaspoon of formula 1 pellet food and 1 teaspoon of formula 2 pellet food.

Measure out ½ teaspoon of spirulina powder and add that to the mixture in the food processor. Add a pinch of frozen zoo plankton to the food processor at this point.

Take out 5 smelts from the freezer and place them whole into the food processor. Tear up and add 2 sheets of the seaweed to the food processor.

Place the cover on to the food processor and put on "blend" or "purée" speed for 30 seconds. If there is anything that is still visible, or you can see chunks, put the food processor on for 10 seconds or until the mixture is completely blended.

Pour into the snack-sized zipper bags, press the bags so there is no air in them and freeze them until ready for use.


Ask your local aquarium expert if you are unsure how much to feed your koi. Use larger sized storage bags for larger sized ponds.


Never overfeed your fish. It will make them sick.

Things You'll Need

  • Freeze dried plankton, mysis, daphnia and brine shrimp
  • Frozen seafood mix
  • Formula pellet food 1 and 2
  • Spirulina powder
  • Frozen zoo plankton
  • Nori dried seaweed
  • Smelts frozen
  • Food processor
  • Measuring spoons
  • Snack-sized zipper storage bags
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About the Author

Based in New Hope, Penn., Sherry Feder has been writing computer-related articles since 1987. Her work has appeared in “Inc.” and “Business 2.0” magazines and online at Wired. Feder received the John Goldenberg Award in 2006. She holds a Bachelor of Science in management information systems from the University of Central Florida.