Masaki Koi Farm is a respected name in the Niigata koi breeding community, run by Masaki Aoki — not to be confused with the more widely known Aokiya Koi Farm. This family-run operation is located in the town of Mushigame, one of the most historically rich areas in Japanese koi culture.
With a focused yet creative approach, Masaki Koi Farm produces koi that are colorful, cleanly patterned, and full of character. While the farm is smaller compared to some of the legacy names in Niigata, Masaki has built a following among collectors and dealers for koi that are beautifully balanced and consistently well-finished.
Over the years, Masaki’s koi have earned a reputation for eye appeal. Each variety is produced with careful attention to skin quality, pattern contrast, and proportion — making these koi excellent additions for display ponds, collections, and hobbyists looking for something different.
STANDOUT GOSHIKI, KIKUSUI, AND DOITSU VARIETIES
Masaki Koi Farm is best known for its Goshiki, which feature a rich layering of black, white, and red over a netted base. These Goshiki often show incredible transformation as they age, with patterns that develop deeper tone and contrast across seasons. Masaki’s Goshiki are particularly well-regarded for their consistency and vibrant beni (red).
The farm is also one of the better-known sources of Kikusui — a Doitsu variety with bright, metallic-white skin and bold orange markings. These koi bring high contrast and elegance to a pond and are a favorite among hobbyists who enjoy a more refined aesthetic.
In addition, Masaki breeds Doitsu Kohaku, Doitsu Sanke, and other metallic koi that offer variety without sacrificing structure. Across all types, the farm’s koi reflect a commitment to clarity, color strength, and sharp patterning.
A BALANCED APPROACH TO SMALL-SCALE BREEDING
What sets Masaki apart is the precision that comes with a smaller, hands-on farm. Breeding is done in modest batches, with careful culling and long-term development in mind. The koi are raised in well-maintained mud ponds, where water quality and feeding are closely monitored. This method supports strong body formation and natural color development over time.
Masaki Aoki works directly with his fish — from spawning to harvest — which gives each koi a level of oversight that’s harder to find at larger operations. This attention to detail translates into koi that grow evenly, hold their color well, and age beautifully.
BUYING MASAKI KOI IN THE UNITED STATES
Fitz Fish Ponds is proud to import koi from Masaki Koi Farm as part of our ongoing commitment to offering high-level variety from trusted Japanese breeders. Our team visits Japan multiple times per year to hand-select koi directly from farms like Masaki, ensuring that every fish brought to the U.S. meets our visual and structural standards.
Whether you’re looking for a layered Goshiki, a clean Kikusui, or something outside the standard Gosanke types, Masaki offers koi that add color, contrast, and personality to any pond setup.
BRING ELEGANT COLOR VARIETY TO YOUR POND WITH MASAKI KOI
Masaki koi offer something different — bold Goshiki, clean Kikusui, and metallic Doitsu varieties that turn heads. Whether you’re expanding your collection or looking for a koi that stands apart, Masaki fish are a smart and stylish choice. Explore our current Masaki selections or call us at (908) 420-9908 to Talk to an Expert today!
