Maruboshi

Maruboshi Koi Farm

Located in the renowned Koi-breeding region of Ojiya, Niigata, Maruboshi Koi Farm has built a strong reputation for producing Koi of exceptional quality and character. With decades of dedication to careful selection and breeding, Maruboshi is widely respected for its consistent results and the passion it brings to every generation of Nishikigoi.

The farm is best known for its Kohaku, which display the striking colour contrast, crisp pattern, and strong body conformation that Japanese Koi are admired for worldwide. Each parent bloodline is carefully chosen to strengthen desired traits, ensuring that the offspring carry forward both beauty and refinement.

Like many leading breeders in Niigata, Maruboshi continues the traditional practice of raising young Koi in natural mud ponds through the summer. This not only allows the fish to grow with strength and vitality but also enhances their skin quality and colour depth, giving them the radiant appearance that makes Japanese Koi so unique.

Over the years, Maruboshi Koi have been admired by collectors and hobbyists both in Japan and internationally, with their fish frequently sought after for their balance of elegance and durability. The farm’s focus remains on producing Koi that can thrive in ponds around the world, offering enthusiasts the chance to own a genuine piece of Japanese artistry.