Ranchu is also a dorsal-fin-less headgrowth breed. The large, egg-shaped body should have a definite curve along the back with a sharp downward angle as the tail nears the caudal peduncle. The fins are short. The doubletail fins are held erect and well spread. Ranchu is very high in demand in Japan and other Asian countries. There are a dozen or more different varieties of Ranchus in Japan . The standards vary for the Ranchu. Big head growth is a matter of taste but the steep angle formed by the tail fins and the caudal peduncle is a crucial element to show the characteristic of a Ranchu. Basic colors are red and red/white. Good quality calico and black Ranchu are also available.