Species group: Koi
Other common names: Doitsu Showa
Scientific name: Cyprinid carpio
Doitsu Koi are scaleless Koi, which were originally bred in Germany. Today, almost every Koi variety comes in a scales version and they have their own class at Koi Shows. Doitsu Kohaku, Sanke and Showa are often referred to as Doitsu A, while all others are Doitsu B. Doitsu are also seen in the Kinginrin class.