Doitsu-goi (ドイツ鯉) Originated by crossbreeding a lot of different set up types with "scaleless" German carp (usually, fish with only only one line of scales along both sides from the dorsal fin). Also created as 独逸鯉, four major forms of Doitsu scale designs exist. The most typical variety (referred to https://www.propanraya.com/cara-merawat-ikan-koi-agar-tetap-sehat-dan-indah-di-kolam-rumah