Doitsu are German carp which might be scale-considerably less. Dependant upon the kind of Doitsu, there might be scales along the lateral and dorsal strains of your koi or no scales in any way. Hand-feeding your Koi fish will help fortify the bond in between both you and your fish. https://www.propanraya.com/cara-merawat-ikan-koi-agar-tetap-sehat-dan-indah-di-kolam-rumah