It is a fish of unusual figure having a more pronounced head than its body, product of the crossing of different species of fish of Asian origin.
The lion's head fish is a type of goldfish, from Asian countries such as China and Japan. In his native Japan he is considered "the king of goldfish"
It is the lion's head fish that is not considered a good swimmer, it tends to swim tilted slightly forward, although there are experts who claim that this posture when swimming is due to the lack of dorsal fin on the spine, while others argue that it is due to the head weight and body shape, more exactly a consequence of the location of your bladder.
Lion-head fish can measure up to 21 centimeters in length, being quite large, although the general average length is 18 centimeters, with slightly smaller specimens of 15 centimeters.