Marusho Koi Farm is located in the Mushigame area of Yamakoshi, Niigata, one of the most historic and respected regions in the world of Nishikigoi breeding. Operated by Shosaku Igarashi, the farm has built a strong reputation for producing refined, show-grade koi with powerful presence and exceptional skin quality. With more than three decades of hands-on breeding experience, Mr. Igarashi has developed Marusho into a trusted name among collectors seeking traditional strength combined with competition-level refinement.
Yamakoshi’s mountainous terrain and natural mud ponds provide ideal growing conditions, helping Marusho koi develop strong bodies and deep coloration. The farm remains intentionally focused and disciplined, prioritizing quality and development over mass production.
EXCEPTIONAL SHIRO UTSURI WITH SHOW-LEVEL SUMI
Marusho Koi Farm is particularly celebrated for its Shiro Utsuri, which are widely regarded as some of the finest in Niigata. These koi are known for their crisp white skin paired with thick, lacquer-black sumi that emerges cleanly and holds its intensity as the fish matures.
Marusho Shiro Utsuri has earned top honors at the All Japan Nishikigoi Show, frequently competing against and even surpassing traditional Gosanke in major categories. This success reflects the farm’s precise breeding approach and long-term focus on stable sumi development, body structure, and balanced pattern placement.
STRONG GOSANKE AND DISTINCTIVE VARIETIES
While Shiro Utsuri remains a defining specialty, Marusho also produces Sanke and Kohaku that reflect traditional Niigata aesthetics. These Gosanke are bred for clean skin, balanced red patterns, and reliable body growth, making them appealing to collectors who value classic structure and understated elegance.
In addition to Gosanke, the farm breeds Ai Goromo and Kujaku, offering varieties that add contrast and uniqueness to a pond. Ai Goromo from Marusho often display refined reticulation layered over rich red plates, while Kujaku showcase metallic brilliance paired with structured patterning.
A BREEDING PHILOSOPHY ROOTED IN EXPERIENCE
Shosaku Igarashi’s decades of experience guide every stage of Marusho’s breeding program. The farm focuses on carefully selected parent koi, disciplined culling, and raising koi in mud ponds that support natural development and strong body formation.
Marusho is also affiliated with the Nishikigoi Niigata Direct group, collaborating with other respected breeders in the region. This connection reinforces the farm’s commitment to maintaining high standards while contributing to Niigata’s broader koi community.
SHOP MARUSHO SHOWA AND SANKE – CLASSIC KOI WITH MODERN VISUAL IMPACT
Fitz’s Fish Ponds works directly with Marusho Koi Farm to select koi that embody the farm’s craftsmanship and competitive strength. Each koi is chosen for pattern balance, body conformation, and long-term development potential, ensuring it reflects the qualities that define Marusho breeding.
Whether you are searching for a show-ready Shiro Utsuri or a refined Gosanke with proven lineage, Marusho koi offer a blend of power, elegance, and tradition. Their ability to compete at the highest levels while maintaining lasting beauty makes them a standout addition to any collection.
Browse our selection of Marusho koi today and experience the depth and precision of one of Yamakoshi’s most respected breeders. Need help choosing? Our team is available online or by phone at (908) 420-9908 to guide you through your options and find a koi that fits your goals.
MARUSHO KOI FARM FAQS – GINRIN EXCELLENCE AND BALANCED PATTERNS
What Is Marusho Koi Farm Known For? (Ginrin Showa And Balanced Patterns)
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The farm is well known for its legendary Ginrin Showa koi. These koi showcase stunning combinations of deep black patterns with bright patches of red and shimmering scales that highlight the striking contrasts in the water.
Where Is Marusho Koi Farm Located?
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The farm is situated in the Niigata region of Japan. This area is often called the top spot in the world of koi breeding and has many well-known farms.
Are Marusho Koi Popular With Collectors And Show Competitors?
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Yes. Marusho koi are a favorite among collectors because of their strong growth potential, clean patterns, and eye-catching finishes. They also perform well in shows and mature gracefully over time.
What Sets Marusho Koi Apart From Other Breeders?
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Marusho’s koi are bred with an emphasis on strong body conformation and balanced pattern flow. Their Ginrin Showa are especially distinctive due to their high-gloss scales and refined contrast.
Why Buy Marusho Koi From Fitz’s Fish Ponds Online?
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We carefully select koi from Marusho Koi Farm during our trips to Japan, choosing fish based on their structure, pattern, and long-term potential. Our selections showcase the best this breeder has to offer.
