Medaka with red and white pattern like koi. Each individual has unique markings — every fish is one-of-a-kind.
Kohaku medaka is an improved variety modeled after Kohaku koi, featuring red (vermilion) markings on a white base. Each individual has uniquely positioned and shaped patterns, giving every fish a one-of-a-kind quality. Fixation rate is low — mass breeding with rigorous selection of ideal red-white distribution is key to quality maintenance. White containers with top-view observation best reveal the red-white contrast. Hardy in 5–30°C, neutral to slightly alkaline water. Carotenoid-rich color-enhancing food helps intensify the red pigmentation. Peaceful temperament allows community keeping, though species-only tanks aid pattern selection.
Origin
Japan (selectively bred variety)
Lifespan
2-3 years
Size
3-4cm
Temperature
5〜30℃（適温20〜28℃）
Medaka pellets
White containers show pattern clearly
5-30°C
Pattern changes as fish grows
Pattern inheritance unstable — selection crucial
Achieving ideal pattern requires multiple generations
Intermediate. This is an intermediate-level species. Some prior experience and knowledge of environmental management are recommended.
The ideal temperature for Kohaku Medaka is 5〜30℃（適温20〜28℃）. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Kohaku Medaka is 2-3 years. With proper care and nutrition, they can live a long and healthy life.
Kohaku Medaka typically reaches 3-4cm as an adult. Size may vary depending on care conditions and individual genetics.
Kohaku Medaka feeds on: Medaka pellets. Aim for a balanced diet with appropriate feeding frequency.
The price of Kohaku Medaka varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
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