Improved variety of Youkihi with even deeper crimson. Vivid red stands out on water surface, intensifies outdoors.
Kotei (Red Emperor) medaka is a further improved variant of Youkihi, featuring an even deeper and more intense crimson-vermilion body color. The name evokes the overwhelming red presence of an emperor. Outdoor keeping with ample sunlight deepens the color further, and pairing with carotenoid- and astaxanthin-rich color-enhancing food produces particularly vivid coloration. Care requirements are similar to Youkihi — neutral to slightly alkaline water, 5–30°C. Dark containers and outdoor pots best showcase its color. Popular as a step-up variety from Youkihi.
產地
Japan (selectively bred variety)
壽命
2-3 years
體型
3-4cm
溫度
5〜30℃（適温20〜28℃）
Medaka pellets, live food
Outdoor medaka pot ideal
Sunlight deepens body color
5-30°C (can overwinter outdoors)
Spawns spring to autumn on water hyacinth
Dark containers prevent color fading from background adaptation
Beginner. 這是一個適合初學者的物種。不需要特殊設備或經驗，基本的飼養設置即可成功飼養。
Kotei Medaka的理想溫度為5〜30℃（適温20〜28℃）。避免溫度驟變，保持穩定的環境。
Kotei Medaka的平均壽命為2-3 years。透過適當的護理和營養，牠們可以長壽健康地生活。
Kotei Medaka成年後通常可達3-4cm。大小可能因飼養條件和個體遺傳而異。
Kotei Medaka的食物為：Medaka pellets, live food。目標是適當的餵食頻率和均衡的飲食。
Kotei Medaka的價格因品系、大小和血統而有很大差異。請查看我們的市場價格頁面獲取最新價格資訊。
尋找此物種的商品
瀏覽Medaka商品Complete 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.