Hiroi Koi Farm is a respected name in the Nishikigoi world, located in Niigata, Japan — the cradle of koi breeding. Operated by twin brothers Kazuyoshi and Nobuaki Hiroi, the farm is known for its consistent production of koi with excellent body conformation, deep and vibrant coloration, and balanced, well-defined patterns. This isn’t a large-scale, high-volume operation. Hiroi Koi Farm remains focused and deliberate, allowing each koi variety to develop to its full potential.
Their breeding program prioritizes long-term growth, structure, and aesthetic appeal — ideal for collectors who value koi that not only look good today but continue to improve as they mature. Every Hiroi koi carries the thoughtful breeding touch and attention to detail that only comes from decades of hands-on experience.
RENOWNED FOR SHOWA AND GINRIN SHOWA
Hiroi Koi Farm is quite popular among fellow Koi enthusiasts. Their Showa and Ginrin Showa varieties speak volumes about their prowess in crafting koi, truly owning Doitsu Showa and Ginrin Showa in most koi farms. Hiroi focuses on high-grade, prominent Showa to further increase its global presence, and it has surely become a go-to location for koi lovers.
Hiroi Showa has gained a serious following thanks to its bold patterns and solid structure. Whether it's a clean-faced Doitsu or a dazzling Ginrin, their koi show strong promise from a young age and tend to grow into elegant, powerful adults. These traits make them top picks for those looking to enhance a pond's visual appeal or even enter the show circuit.
SELECTED WITH CARE FOR FITZ’S FISH PONDS
At Fitz’s Fish Ponds, we’re proud to offer hand-picked koi directly from Hiroi Koi Farm. Each fish is carefully selected for its unique beauty, pattern strength, and potential for future growth. Whether you're looking for a mirror-scaled Doitsu with strong sumi placement or a brilliant Ginrin Showa that sparkles under the sun, Hiroi koi provide standout elegance and top-tier genetics.
A FAVORITE AMONG ENTHUSIASTS
Word travels fast in the koi community — and Hiroi’s work speaks for itself. Enthusiasts and long-time collectors alike often seek out Hiroi Showa specifically, knowing the fish will deliver on all fronts: structure, color, and personality. The farm’s koi have gained a strong following not just for how they look in the dealer tank, but also for how they develop in private ponds across the world.
That loyalty comes from consistent results. Hiroi doesn’t flood the market with high-volume sales. Instead, they focus on crafting koi that koi lovers truly appreciate, koi that grow better with time and stand out for the right reasons.
READY TO ADD A HIROI KOI TO YOUR COLLECTION?
Explore our current Hiroi offerings online or contact our team directly for more details. We’re happy to share more about our latest selections and what makes each fish unique. These koi go quickly, and when Hiroi koi arrive, they don’t stay in stock long.
If you're looking for show-quality Showa with real staying power, Hiroi Koi Farm delivers fish that truly live up to the reputation. Bred with care, selected with purpose, and offered to collectors who expect the best.
BRING HOME BOLD CONTRAST AND LONG-TERM BEAUTY WITH HIROI KOI
Our hand-selected Hiroi koi deliver bold patterns, crisp contrast, and long-term beauty you’ll enjoy season after season. Shop our collection of koi fish online today, and bring home a koi that turns heads now and gets even better over time. Need help shopping? Talk to an Expert Online or call us at (908) 514-4778.
