Club tetra

from Wikipedia, the free encyclopedia
Club tetra
Hemiodus sp.  at the Berlin Aquarium.

Hemiodus sp. at the Berlin Aquarium .

Overcohort : Clupeocephala
Cohort : Otomorpha
Sub-cohort : Ostariophysi
Order : Tetras (Characiformes)
Family : Club tetra
Scientific name
Bleeker , 1859

Club tetra (Hemiodontidae) live with almost 30 species in five genera in northern and central South America , south to the Río Paraná and the Río Paraguay .


Club tetra are slim, nimble, 7 to 30 centimeters long schooling fish. Your body is spindle-shaped. The caudal fin is always deeply cut. Usually an adipose fin is present. The mouth is often slightly below. The lower jaw of adult club tetra is toothless or the teeth are reduced. Most species show a round, black spot on the sides of the body and a black bar on the lower caudal fin lobe. The number of vertebrae is 40 to 45. Among the club tetra there are herbivores, upbringing eaters and omnivores.

Species of the subfamily Hemiodontinae live in open water, the species of the subfamily Anodinae live near the ground.

As aquarium fish, they need a larger tank. They need a lot of oxygen and are very sensitive to being caught.

Internal system

Anodus elongatus
Bivibranchia protractila
Hemiodus cf. gracilis
Hemiodus unimaculatus


Web links

Commons : Keulensalmler  - Collection of images, videos and audio files