Climbing Perch (also called Climbing Gourami and Walking Fish), a freshwater fish that comes out of the water to breathe air for hours at a time. The fish cannot derive enough oxygen from water because it has very small gills and generally lives in oxygen-poor water. In a cavity above its gills is a respiratory organ that enables the fish to absorb oxygen from the air. The fish is frequently observed moving over land from one body of water to another; it moves by flexing its tail and using its fins as props. It has also been seen climbing sloping tree trunks. It feeds on crustaceans, insects, and vegetation.The climbing perch can breath in or out of the water.
One species is found in canals, ditches, lakes, and stagnant pools in Asia. It is grayish-green and grows to 10 inches (25 cm) long. The spotted climbing perch is one of several species native to Africa. It is a popular aquarium fish in Europe. It grows to 6 inches (15 cm) long and has a black spot at the base of the tail.
Climbing perch, which are not true perch, belong to the family Anabantidae. The climbing perch of Asia is Anabas testudineus; spotted climbing perch, Ctenopoma acutirostre.