Kiichi Hoshino 

Teradomari Koi Farm (officially Teradomari Koi Farm) is a distinguished koi breeding operation located in Teradomari, Nagaoka City, Niigata Prefecture, Japan. It is owned and operated by Kiichi Hoshino, who founded the farm after working for Hoshikin Koi Farm and marrying into the Hoshino family.

Specialization

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Teradomari Koi Farm is particularly celebrated for its pioneering work in Ginrin Kohaku — often referred to as “Teradomari‑ginrin.” Hoshino-san developed a bloodline combining Tomoin (Hoshikin) and Sensuke (Matsue) genetics, producing large-growing Kohaku (exceeding 80 cm) with exceptionally brilliant, long-lasting ginrin scales. The farm also breeds Ginrin Showa, along with traditional-scaled Kohaku and Showa, all developed with a focus on strong body conformation, vivid color, and long-term development.

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Farm Overview

• Founded: Established after 1970 by Kiichi Hoshino

• Location: Teradomari, Nagaoka City, Niigata Prefecture, Japan

• Current Owner: Kiichi Hoshino

• Facilities: Approximately 30,000 m² of breeding area, including mud ponds and indoor systems for raising and staging koi

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Reputation

Teradomari Koi Farm is widely regarded as the leading breeder of Ginrin Kohaku, consistently winning “Best in Variety” at top-tier competitions including the All Japan Koi Show and ZNA shows. Hoshino’s approach prioritizes koi that improve with age, often withholding specimens until they are at least two years old to ensure they meet mature quality standards. Collectors and dealers around the world seek out Teradomari koi for their brilliance, durability, and elite growth potential.

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In Summary

Teradomari Koi Farm specializes in high-end Ginrin Kohaku and Ginrin Showa, with an emphasis on enduring sparkle, strong growth, and refined coloration. Under Kiichi Hoshino’s experienced guidance, the farm has earned a top reputation in Japan and abroad as a trusted source for koi that mature into world-class specimens.