Cyprinidaefreshwater fishBeginner

Kohaku Koi Medium

Cyprinus rubrofuscus (domesticated koi)

Origin: Captive bred

K

Water Parameters

Temperature525 °C
15 °C35 °C
pH78.5
49
GH (Hardness)520 °dGH
0 °dGH30 °dGH
KH (Alkalinity)315 °dKH
0 °dKH20 °dKH

Quick Stats

Max Size
60 cm
Min Tank
1000 L
Lifespan
20-30
Swimming Level
All
Schooling
Yes (3–20+)
Diet
Omnivore
Temperament
Peaceful; compatible with all koi varieties and pond fish

About

A medium-sized Kohaku koi showing the classic two-colour Gosanke pattern of pure white body and bold red (hi) patches that have become more defined with age. Kohaku is the most beloved and widely kept koi variety across Belgium and the Netherlands and the foundation of any serious koi pond collection. At medium size, hi patterns are well-established and the fish retains strong growth potential over many years ahead.

Care Guide

House in a well-filtered pond of at least 1,000 L. Maintain pH 7.0–8.5, temperature 5–25°C; cold-hardy through Belgian winters. Feed quality koi pellets with colour-enhancing pigments seasonally. UV sterilization and regular water changes maintain the pure white base colour. Compatible with all other koi varieties and large pond fish.

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