Kenzen Koi Food Kenzen is engineered for Koi Kenzen Primary diet koi food Kenzen Color food for koi Koi farm proven breeders choice food for baby koi

Kenzen Koi Food

Years of research has produced the perfect blend of high quality ingredients that is Kenzen Koi Food.  The balance of energy to fuel metabolism and protein to optimize body growth is formulated to help Koi reach their maximum potential. 

In the first month of feeding Kenzen Koi Food exclusively, Koi keepers notice increased muscle mass and skin luster on their Koi. Plus, Kenzen adds an exclusive brand of Bioceuticals to help ensure the immune systems of your Koi are supplied with the materials needed to help improve their ability to fight infectious diseases and parasitic infestations.

Kenzen koi food digestable

Kenzen designed a food that the Koi digest and assimilate almost all of the ingredients.

as-sim-i-late: to take in and utilize as nourishment: absorb into the system

Do not feed other food brands to Koi in colder temperatures unless specified to be safe. Kenzen is!


Our testing resulted in more than an 80% decrease is waste.

Click here to learn how to feed through the Winter!

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Which food do I need ? Options
  Brief Description Sizes Floating Sinking 10 lbs.
Primary DietKenzen Primary Diet Well balance and nutritionally complete diet for year round feeding made from all natural and highly digestible ingredients benefiting Koi growth and health. Shop now



Yes Yes

Breeder's ChoiceKenzen Breeder's Choice

This versatile diet has 12% fat, it provides higher energy for young koi, and it can be used as a bulk up supplement for adult koi Shop now


Yes No Yes

Using the above chart, you can select from the Buy Now options to the right, or select Shop Now

Small and Large Pellet Sizes

Which size to order?

Figuring out which pellet size to feed? Consider feeding smaller pellets to fish that are 8 inches or less and use the larger pellets for fish over that size.

While it is ok to feed large fish smaller pellets, they often suck in water with the pellets and we have seen small pellets pass right through the gills and out. If you have a variety of sizes, then get a bag of each. The food will remain fresh for some time because it arrives in a zip lock type sealed bag. Shop Now

Kenzen Primary Diet ingredients:

Herring meal, Potato starch, Dried whole egg as the main content along with other nutrients to benefit the Koi diet.

Herring meal is the primary protein source which is rich in fish oil.

Kenzen Koi Pond Food


Learning about Ingredients in general

Read the ingredients listed on the bag of any Koi food and discover some of the odd ingredients and any combination of plant foodstuffs that may seem beneficial to humans, yet they are not to fish. In fact, ingredients like Barley, Rice, Wheat and Corn are listed as Endogenous anti-nutritional in table 12 of the Endogenous Anti-nutritional factors present in plant feedstuffs document produced by the Fishers and Aquaculture Department.

Another note about corn. Any corn or corn gluten listed as an ingredient for Koi food, will make the whites of your Koi yellowish. One company actually boasts about the quality of their corn. (Watch the whites of your Koi get bright after using Kenzen if you have been feeding a Koi food that has any amount of corn products)

So many other types of fillers and things companies may claim will help, yet don't. We were surprised when we started to look up terms and definitions of ingredients. Some make nice claims about coatings of vitamins or clay that stand a better chance of just washing off when the food enters the water then actually making it into your fish. Perhaps you have seen varying types of slicks on the water surface once the food is placed in the pond.

All products ingredients are listed with the first item representing the largest portion and each after it is less. We are researching many of the other brands ingredients and plan on sharing the legal definitions here soon. Review the research link at the top and be sure to check back.

High protein food even in cold water?


Earth worms are 82% protein. Toss one into the pond during winter when the water may be colder than 50.

Will the Koi wait until the warmer waters of spring to eat it? Not likely. Could this be because the worm is very digestible?

The Koi's digestion can easily break it down. Unlike many other types of proteins and fillers that manufacturers use for ingredients.

This is the reason many people say to wait till the ponds water temperature reaches 55 degrees before feeding them.

Often we start them off with a wheat germ food to ease them into being able to digest. This is not needed when using Kenzen!

By feeding with Kenzen, you're feeding your fish a food that has no fillers, one that is easy to digest and very nutritional that they can assimilate.

Let the fish decide when they will no longer eat. As the water gets colder, they may reduce the amount of food or even skip a day.

To fully benefit the digestibility, do not mix Kenzen Koi food with other foods.

Here at SkagiTek, we did feed our fish in 36 degree water. They came up off the bottom and ate. At those temps., they were moving a bit slower then they were at 41 degrees and feeding every other day.

Feeding them at cold temperatures requires them feeding on Kenzen during Fall and into the winter. This is great news for those of us and the Koi in the colder climates! Shop Now

Unlike many Koi food manufacturers claiming to be the best Koi food using the best ingredients, Kenzen is an engineered Koi food that is open about proving the benefits to Koi using all natural "nature-identical" ingredient profiles that match the natural diet for Koi in the wild.

Plus, they add an exclusive brand of Bioceuticals to help ensure the immune systems of your Koi are supplied with the materials needed to help improve their ability to fight infectious diseases and parasitic infestations.

We have found manufacturers use chicken feathers to increase the protein or reprocessed scraps. Kenzen Koi food was created after researching at great length to develop a Koi food that has resulted with so many benefits that it is already changing our Koi hobby for the better. Many of the benefits are not possible with the other Koi foods on the market. Young Again Pet Food is the manufacturer of Kenzen. They specialize in researching specific species to develop truly the highest quality pet food products. This site was created to help Koi keepers to learn more about Koi food so they can make informed decisions to benefit the fish and water quality.


We have been testing Kenzen Koi food for over 4 years in an outdoor pond and our indoor pond. With our indoor pond, we were able to see well over 80% less fish waste when we switched to Kenzen Koi food. We noticed the whites on our fish just pop to a bright white.

In our outdoor pond, the fish seem much more active even at colder water temperatures when normally they use to sit on the pond bottom and conserve energy. The more you feed them this food the faster they grow.

CUSTOMER COMMENTS: Our customers have called in with so many good comments resulting from switching to this food including things like the fishes body now looks leaner and better. Stating that before the head seemed too small and the body was getting fat and out of shape. After switching to just Kenzen, in a few months' time, the shape of the fish looked much less fatty and that they really like how the body of their Koi looks much more natural.

To place an order - Select the pounds and type of food along the right side of the page.

Made in USA

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This site is owned and operated by SkagiTek Inc. that is a dealer of the Kenzen food and in no way owns any investment in the product or Young Again Food company. We believe so much in the benefits of Kenzen Koi food products, that we made this web site just to help Koi keepers learn more about it and buy it. Try it, we are confident you will notice the benefits.