Doitsu-goi (ドイツ鯉) originated by crossbreeding a lot of diverse founded varieties with "scaleless" German carp (commonly, fish with only an individual line of scales along either side in the dorsal fin). Also created as 独逸鯉, four most important kinds of Doitsu scale designs exist. The commonest sort (referred to earlier https://www.propanraya.com/cara-merawat-ikan-koi-agar-tetap-sehat-dan-indah-di-kolam-rumah