Ryukin Goldfish
The Ryukin goldfish is a type of fancy goldfish that has several very unique features. The Ryukin goldfish is said to first have originated in Japan back in the 1770′s. The Ryukin goldfish gets its name because it is said to have first arrived in Japan through being transported from the Ryukyu Islands (locataed between Japan and Taiwan). The Ryukin is also known by several other names, such as the Fringetail, the Japanese Ribbontail, the Nagasaki goldfish or the Onaga goldfish. These name variations are mostly due to the different texts in which the Ryukin goldfish is cited.
There are two notable variants of the Ryukin goldfish: the Yamagata Kingyo (also called a tamasaba or sabao), and the Tetsu Onaga. The Ryukin goldfish is most notable for the unique shape of its body, which has a type of “hump” that exists in the shoulder part of this goldfish. The fins of the Ryukin goldfish may be either long or short, depending on its genetics. In addition to this, the tail of the Ryukin goldfish may be either quadruple or triple-finned.
There are a few different color variations of the Ryukin goldfish. These colors may include a calico pattern, an “iron” color, white, red and white, or a deep red color. The dorsal fin of the Ryukin goldfish is high on its body, and often times the tail fins of this fish may extend in length to be twice the size of the fish’s body. Like most other goldfish, Ryukin goldfish are able to tolerate small temperature changes.