青鳉

🔬 物种简介

青鳉是东亚传统观赏鱼，在日本有超过400年的饲养历史。耐寒耐热，适应性极强，甚至被用于国际空间站的太空实验，是世界上首批在太空中繁殖成功的脊椎动物。日本有超过600个品种的改良青鳉。

🧪 生存参数

Wikipedia

The Japanese rice fish, also known as the medaka, is a member of genus Oryzias (ricefish), the only genus in the subfamily Oryziinae. This small native of Japan is a denizen of rice paddies, marshes, ponds, slow-moving streams and tide pools. It is euryhaline, occurring in both brackish and freshwater. It became popular as an aquarium fish because of its hardiness and pleasant coloration: its coloration varies from creamy-white to yellowish in the wild to white, creamy-yellow, or orange in aquarium-bred individuals. Bright yellow, red or green transgenic populations, similar to GloFish, have also been developed, but are banned from sale in the EU. The medaka has been a popular pet since the 17th century in Japan. After fertilization, the female carries her eggs attached anterior to the anal fin for a period before depositing them on plants or similar things.