We are back in business!  Ultimate Koi Clay - Since  2002

Binds Toxins . Improves Immune System . Replenishes Minerals

Ultimate Koi Clay is an Essential Additive to Your Pond, Water Garden and Plants

Water quality is the most important factor in a koi pond or water garden. In almost all cases the water used to fill our beautiful ponds is deficient in most of the minerals and trace elements needed to allow our koi and goldfish to reach their maximum potential.

The highest quality koi in the world are raised in mud bottom ponds. The leading koi experts in the world agree that the type of clay which contains the most minerals and trace elements is bentonite / montmorillonite clay.

Ultimate Koi Clay has more than 60 minerals and trace minerals, but the balance of those minerals is different in each source. Major minerals such as calcium, chloride, magnesium, phosphorus, potassium and sodium are included in the fish foods. What is most important is having a calcium bentonite clay with a higher percentage of trace minerals since those are the minerals that have been leached out of our soils and water.

Ultimate Koi Clay has taken the time and effort researching and testing samples from dozens of mines to find the best source of calcium bentonite clay. You can be assured that Ultimate Koi Clay has been laboratory tested to confirm it will provide the proper minerals for your fish when used according to our dosing instructions.

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What our Customers have to Say

After reading your product information about the mineral content of Koi Clay and that plants can benefit from it as well as fish, I decided to mix about a half cupful of the clay in with the soil in each container when we repotted our water lilies early last summer. I don't know if we can give credit to the clay, but we sure had multiple blooms all summer on all eight of our different water lilies last year. We know several people with ponds and visited many of them last year. I didn't see one with as many blooms as we had all summer. I'm not going to risk not using it for our water plants next year!


Two years ago I started studying the clays here in the USA. After a month or so of chasing information down I ran up on Gene and Koi Clay. Gene had done even more research than I had and had found the best mine in the US for our use. The price of koi clay was reasonable, and I have been very pleased with the results. I would not keep koi without it. It dissolves very easy as it is milled to a very fine power and dissolves very easy into water. I like the size of the containers as it is just right for a season!! After I started using it my wife sounded like a Tide commercial. The whites were much whiter, and the reds were much redder on our fish, and the water sparkled. Koi Clay is easy to use. I dump a handful into a 5-gal bucket, hit it with a hose, stir it up with my hand and dump it into my pond late in the evening. Water has that sparkling look of white water the next morning. Just wanted to tell the world of what adding Koi Clay has done for my sick pond & fish!


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