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Nishikigoi

NISHIKIGOI – THE LIVING JEWELS OF JAPAN

Learn about Nishikigoi, Japan’s ornamental koi known for vibrant colors, graceful movement, long lifespans, and more than 100 recognized varieties.

Breeders Specializing in Nishikoi:

Dainichi

Isa Koi Farm

Momotaro

Nishikigoi, meaning “brocaded carp,” are ornamental, domesticated color variations of the common carp (Cyprinus rubrofuscus) that originated in 19th-century Niigata, Japan. Often called “swimming jewels,” these koi are celebrated for their vibrant coloration, graceful movement, and remarkable longevity. Over time, they have become global symbols of love, friendship, perseverance, and success.

Developed during the mid-Edo period, Nishikigoi were selectively bred from naturally occurring color mutations. Today, there are more than 100 recognized varieties, with the most famous being the “Big Three” — Kohaku (white with red), Tancho Sanke (white with red and black), and Showa Sanke (black with red and white). In 2017, Nishikigoi were officially designated as the state fish of Niigata Prefecture, honoring their deep cultural roots.

Nishikigoi are admired for their spindle-shaped bodies, bold colors including red, white, black, blue, and yellow, and in some varieties, brilliant metallic sheen. With proper care, they can grow up to three feet in length and live for decades, with some documented cases exceeding 100 years under ideal conditions.

Nishikigoi FAQs: What to Know About Japan’s Living Jewels

What does Nishikigoi mean?

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Nishikigoi translates to “brocaded carp,” referring to their ornamental patterns and vibrant coloration.

How large do Nishikigoi grow?

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In well-maintained ponds, they can grow up to 3 feet in length.

What do Nishikigoi eat?

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They are omnivorous bottom-feeders that consume insects, algae, and specially formulated floating koi pellets.

What kind of pond do they need?

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They require large, clean, well-oxygenated ponds, typically at least 3–4 feet deep for protection and stable temperature.

Are Nishikigoi social fish?

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Yes. They are peaceful and social, and many can even be trained to eat from a person’s hand.

This Variety of Koi will be on our website soon!
For our full selection of koi fill out the form below to make an appointment to visit our Farm in Milford NJ

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