Shusui: Shusui Memiliki tubuh biru dengan sisik yang terlihat seperti sisik berkilau dan pola merah yang terdistribusi di atas tubuh. These ornamental fish were being bred by using a scaleless carp imported into Japan from Germany and spawned a mutation of scaleless koi. Referred to as "doitsu," or "German" in https://www.propanraya.com/cara-merawat-ikan-koi-agar-tetap-sehat-dan-indah-di-kolam-rumah