Doitsu-goi (ドイツ鯉) Originated by crossbreeding a lot of diverse established kinds with "scaleless" German carp (generally, fish with only only one line of scales together all sides of the dorsal fin). Also composed as 独逸鯉, 4 primary different types of Doitsu scale styles exist. The most common style (referred to https://www.propanraya.com/cara-merawat-ikan-koi-agar-tetap-sehat-dan-indah-di-kolam-rumah