The Breeders Behind Select Koi and Auction Koi — Why We Trust Them for Premium Japanese Koi
- jenno45
- Nov 24
- 2 min read
When it comes to premium Japanese koi, the breeder matters just as much as the variety. At Select Koi, every fish is hand-selected in Niigata from farms known for world-class genetics, elite skin quality, and consistent long-term growth. Our relationships with Japan’s top breeders allow us to bring American collectors koi with true authenticity and proven bloodlines.
Below are some of the most respected breeders we work with — and why they are trusted worldwide.
Sakai Fish Farm
Often considered the #1 koi farm in Japan, Sakai Fish Farm is legendary for producing high-end Kohaku, Sanke, and Showa with unmatched shiroji and growth potential. Their bloodlines have won countless championships and remain the gold standard for gosanke collectors.

Isa Koi Farm
Isa is one of the most respected Showa breeders in Niigata, known for deep, ink-black sumi and powerful conformation. Their koi evolve beautifully with age, making Isa a favorite among serious collectors looking for future potential.

Marusei Koi Farm
One of Japan’s largest and most diverse breeders. Marusei is famous for Jumbo Karashigoi, Yamabuki Ogon, Chagoi, and a huge range of metallic and gin-rin varieties. Their koi are strong, vibrant, and grow exceptionally well.

Marudo Koi Farm
Marudo focuses heavily on large, clean, high-quality Kohaku and Sanke, along with select Monomuji koi varieties. Their koi display classic Niigata body structure and incredibly bright shiroji, making them extremely desirable for pond owners and collectors.

Kanno Koi Farm
Kanno is a respected breeder of Goshiki and Sanke with deep, rich color and excellent balance. Their Goshiki, in particular, are some of the most sought-after in Japan.

Sekiguchi Koi Farm
Known for producing some of Japan’s most powerful Showa, Sekiguchi Koi Farm is respected for deep lacquer-black sumi, thick beni, and bold, traditional patterns. Their koi develop dramatically with age and often show exceptional body strength, making them a favorite among collectors who appreciate classic Showa with strong future potential.

Torazo Koi Farm
Famous for beautiful, traditional Kohaku, Torazo Koi Farm produces koi with snowy white shiroji, bright uniform beni, and elegant, well-balanced patterns. Their bloodlines are known for stability and refinement, making them highly desirable for collectors who love timeless, high-quality Kohaku with excellent growth.

Maruhiro Koi Farm - Premium Japanese Koi
Maruhiro Koi Farm is known for producing one of the most diverse lineups of premium Japanese koi in Niigata. Their varieties span powerful Showa, refined Kohaku, vibrant Kujaku, and an impressive selection of Goshiki, Shusui, Ochiba, Ginrin types, Doitsu patterns, Hikarimono metallics, and countless rare or experimental crosses. Few breeders offer such a broad spectrum of high-quality koi, each developed with strong color, crisp patterns, and excellent future potential.

Written by Alex Ayres, Media Specialist at Select Koi



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