Cyprinidaefreshwater fishintermediate

Shiro Utsuri

Cyprinus carpio

Origin: Captive bred (Japan)

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Water Parameters

Temperature525 °C
15 °C35 °C
pH78.5
49
GH (Hardness)520 °dGH
0 °dGH30 °dGH
KH (Alkalinity)312 °dKH
0 °dKH20 °dKH

Quick Stats

Min Tank
2000 L
Lifespan
20-30
Swimming Level
middle
Schooling
Yes (3+)
Diet
omnivore
Temperament
Peaceful; social pond fish; compatible with all koi and goldfish.

About

Shiro Utsuri displays a bold black body with dramatic white markings that wrap around the head and body in a lacquer-like pattern, creating a striking bi-colour contrast that is highly prized in the Dutch and Belgian koi hobby. The white pattern appears to 'wrap' over the black base, creating a more dramatic three-dimensional appearance than many other koi varieties. Sumi and white balance develops further with age.

Care Guide

Requires a large pond (minimum 2000L given its potential size to 65cm) with excellent filtration. Feed high-quality koi pellets; colour-enhancing foods can improve the contrast of white areas. Regular water quality monitoring is essential — koi are sensitive to ammonia and nitrite spikes. Provide predator protection for valuable specimens. Add pond salt (0.1–0.3%) during spring and after treatments for immune support.

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