Kusuri Klay – Natural Mineral Clay for Koi Health
Kusuri Klay mimics the natural mud pond environment where high quality Koi are traditionally bred and grown during the summer months. It is a pure mineral product, free of chemicals, phosphates, and base metals. The colour of the clay may vary from batch to batch.
Koi absorb minerals in large quantities from the water, which supports bone and cellular growth. Kusuri Klay enhances mineral availability in the water, promoting better nutrient uptake.
Developed in the late 1990s at Exeter University, this exclusive clay helps remove stress proteins from the digestive tract of Koi carp. These stress proteins are caused by food left open to airborne spores of fungi and algae. Adding an optimum level of 5% Kusuri Klay can improve food digestibility by up to 22%.
| Key Features | Details |
|---|---|
| Purity | Free of chemicals, phosphates, base metals |
| Usage Level | 5% in water |
| Origin | Research conducted at Exeter University |
| Benefit | Improves food digestibility by up to 22% |
FAQ
What is the recommended dosage of Kusuri Klay for Koi?
The recommended dosage is 5% Kusuri Klay added to the water.
Does Kusuri Klay affect the water chemistry of the pond?
Kusuri Klay is a pure mineral product and does not introduce chemicals or phosphates. It supports mineral availability without altering pH or other water parameters significantly.
Is the colour of Kusuri Klay consistent across batches?
The colour of Kusuri Klay may vary from batch to batch due to natural mineral composition.

Warren Baker –
I’ve been using Kusuri Klay for three months now and noticed my Koi are more active and eating better. The fish seem healthier and their color has improved. The 5% mix is easy to measure and the water remains clear.
Nathan Clarkson –
After adding Kusuri Klay to my pond, I observed better digestion in my Koi. They seem to eat more and stay in the water longer. The product is easy to use and matches the natural pond environment.
Jennifer Vaughan –
My Koi have shown less stress and better appetite since I started using Kusuri Klay. The improvement in food digestibility is noticeable, especially during warmer months.