Koi Klay Boost – Calcium Montmorillonite for Koi Ponds
Koi Klay Boost is a high-purity, ultra-fine calcium montmorillonite clay sourced specifically for koi pond use. This mineral-rich clay has been relied on by top Japanese koi breeders for decades to produce koi with superior color, skin quality, and overall vitality.
Designed for moder
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Calcium Carbonate Clay
I have used calcium carbonate as a supplement to my pond in the past. I like Koi Klay Boost because the product is refined and very smooth.
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Anonymous · August 14, 2026
Great product
Applied clay recently and water seems yo be clearer and koi are happy. I used in conjunction with recharge.
