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.
产地
Japan (selectively bred variety)
寿命
2-3 years
体型
3-4cm
温度
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. 这是一个适合初学者的物种。不需要特殊设备或经验，基本的饲养设置即可成功饲养。
Kotei Medaka的理想温度为5〜30℃（適温20〜28℃）。避免温度骤变，保持稳定的环境。
Kotei Medaka的平均寿命为2-3 years。通过适当的护理和营养，它们可以长寿健康地生活。
Kotei Medaka成年后通常可达3-4cm。大小可能因饲养条件和个体遗传而异。
Kotei Medaka的食物为：Medaka pellets, live food。目标是适当的喂食频率和均衡的饮食。
Kotei Medaka的价格因品系、大小和血统而有很大差异。请查看我们的市场价格页面获取最新价格信息。
查找此物种的商品
浏览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.