Mr Koizumi

Recreate the mineral-rich environment of traditional Japanese mud ponds and enhance the radiant beauty of your fish with our range of authentic Mr. Koizumi koi clay, natural water conditioners, and mineral health treatments. Developed using time-tested Japanese husbandry methods, Mr. Koizumi formulations provide the essential trace elements and natural minerals needed to support superior skin quality, vibrant coloration, and long-term vitality in your koi.

Sourced from high-purity natural clay deposits, Mr. Koizumi products release continuous trace minerals directly into the water column, stimulating mucus production and strengthening the natural slime coat that protects fish from parasites and environmental stress. Regular additions purify the water by binding microscopic suspended particles, dissolved organic compounds, and heavy metals, creating exceptional water clarity and polish. These vital minerals also work from the inside out when ingested alongside food, aiding digestive absorption and bringing out a deep, luminous white skin background (shiroji) and intense red markings (beni). Simple to apply as a regular weekly treatment or mixed directly into pelleted feeds, these pure mineral blends support healthy biological filtration while keeping your fish in peak show condition.