Izumiya Koi Farm is one of Niigata’s most historic and pioneering breeders, established in 1947 in Ojiya, Japan. Founded shortly after World War II, the farm became one of the earliest retail-focused koi operations in the region and has since grown into a world-renowned name in metallic and large-framed Nishikigoi.
Originally led by Ichiro Mano and now managed by his son, Ryu Mano, Izumiya continues to uphold a legacy built on durability, growth potential, and vibrant coloration. The farm’s location in the Minaminigoro region of Ojiya places it at the heart of Niigata’s koi culture, where generations of expertise have shaped some of the finest bloodlines in the world.
THE BENCHMARK FOR YAMABUKI OGON
Izumiya Koi Farm is best known for producing exceptional Yamabuki Ogon, the metallic yellow koi that has become a signature of the farm. These koi are recognized for their luminous, uniform color and impressive size, often exceeding 90 centimeters under proper conditions.
The metallic sheen on Izumiya Yamabuki Ogon is clean and consistent, with strong body structure supporting the brilliance of the color. The combination of size, durability, and radiant finish has made Izumiya a global reference point for collectors seeking high-quality Hikarimono.
STRONG METALLIC VARIETIES AND REFINED GOSANKE
While Yamabuki Ogon remains the farm’s flagship variety, Izumiya also produces a range of metallic and traditional koi including Doitsu Kohaku, Sanke, Showa, Benigoi, and Koromo. These koi are bred with a focus on large frames, thick bodies, and skin quality that improves with age.
Izumiya Sanke and Showa are known for their balanced patterns and strength of structure, while their Doitsu varieties offer bold contrast and clean skin. Across all varieties, the emphasis remains on durability and steady development rather than short-term visual impact.
A BREEDING PHILOSOPHY CENTERED ON STRENGTH AND NATURAL DEVELOPMENT
Izumiya Koi Farm follows a philosophy rooted in raising robust fish through natural growth methods. Extensive use of mud ponds allows koi to build strong bodies and develop excellent fukurin, the visible skin texture that adds depth and refinement as koi mature.
This focus on strength and health ensures that Izumiya koi are not only visually impressive but also resilient and long-lasting. The farm’s disciplined breeding program prioritizes parent fish with proven size potential and stable coloration, reinforcing its reputation for producing koi that thrive in a wide range of pond environments.
ADD AN IZUMIYA KOI TO YOUR POND TODAY
Fitz’s Fish Ponds works directly with Izumiya Koi Farm to select koi that reflect the farm’s legacy of size, durability, and vibrant metallic beauty. Each koi is chosen based on structure, skin quality, and long-term growth potential, ensuring it represents the standards that define Izumiya breeding.
Whether you are drawn to the brilliance of Yamabuki Ogon or seeking strong-bodied Sanke or Showa with metallic influence, Izumiya koi offer commanding presence and proven lineage.
Browse our selection of Izumiya koi today and experience the strength, scale, and luminosity of one of Niigata’s most historic metallic specialists. Need help? Call us at (908) 420-9908 or Talk to an Expert Online.
