A blue fish is a type of freshwater fish that is native to East Asia. It is also known as the Chinese perch, Japanese bluefish, or simply bluefish. The blue fish has a deep blue body with silver streaks running along its sides. It has a large mouth and sharp teeth. The average length of a blue fish is about 12 inches, but they can grow up to 18 inches long.
The blue fish is an aggressive predator and will eat just about anything it can fit into its mouth. They are known to attack other fish, amphibians, reptiles, and even small mammals. In fact, thebluefish is one of the few freshwater fishes that have been known to kill humans.
Despite their aggressive nature, blue fish are popular in the aquarium trade. They are relatively easy to care for and make interesting additions to any freshwater tank.