Warm amber (tortoiseshell) body color. More subdued than Youkihi with refined, subtle beauty.
Kohaku (Amber) medaka is an improved variety featuring a warm amber-to-tortoiseshell body color. Unlike the intense vermilion of Youkihi, it displays a translucent amber hue with understated elegance. Many individuals carry transparent-scale traits, allowing a faint view of internal redness. Adapts to any container type with consistent beauty. Hardy in 5–30°C, neutral to slightly alkaline water, suitable for beginners. Moderate color-enhancing food helps maintain the amber depth. Peaceful temperament suits community tanks. Particularly well-matched with traditional Japanese ceramic containers.
Origin
Japan (selectively bred variety)
Lifespan
2-3 years
Size
3-4cm
Temperature
5〜30℃（適温20〜28℃）
Medaka pellets
Beautiful in any container
5-30°C
Close to wild type and hardy
Easy to breed with high fixation rate
May seem plain but appreciated by connoisseurs
Beginner. This is a beginner-friendly species. No special equipment or experience is required, and it can be kept successfully with basic care setup.
The ideal temperature for Kohaku (Amber) Medaka is 5〜30℃（適温20〜28℃）. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Kohaku (Amber) Medaka is 2-3 years. With proper care and nutrition, they can live a long and healthy life.
Kohaku (Amber) Medaka typically reaches 3-4cm as an adult. Size may vary depending on care conditions and individual genetics.
Kohaku (Amber) Medaka feeds on: Medaka pellets. Aim for a balanced diet with appropriate feeding frequency.
The price of Kohaku (Amber) Medaka varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Find listings for this species
Browse Medaka ListingsComplete Beginner's Guide to Medaka Keeping
Everything beginners need to start keeping medaka: containers, water preparation, feeding, indoor vs outdoor keeping, and recommended starter varieties.
Medaka Variety Encyclopedia — Popular Breeds & Selection Guide
An encyclopedia of popular medaka varieties with characteristics, difficulty, viewing points, and price ranges for each.
How Much Does Medaka Keeping Cost? Monthly Running Costs Explained
Monthly medaka keeping costs for indoor and outdoor setups: food, containers, plants, and electricity compared.
Medaka Lifespan — Tips for Longevity by Variety
Medaka live 2–3 years on average but can exceed 4 years. Learn about variety differences and care tips for longevity.