rivière - Discover fishes living in these biotopes

The rainbow trout comes from the western United States where she was raised intensively since the beginning of the twentieth century. It was introduced in many parts of the world. In Europe, it sometimes supplants the native trout. In Wallonia, its introduction is prohibited in the natural environment.

It can breathe oxygen from the air, it stays at least half an hour under the surface between two breathes. Its tapered pectoral fins have a tactile and sensory role. Because of its large size, it is not recommended for the aquarium of a specimen.

Dwark suckermouth

It also feeds off of feces of other animals. To protect itself, it has sharp bony plates along its sides. It emits sounds reminiscent of grunts. It easily acclimate to the aquarium, but because of its large size, it can become cumbersome.

During breeding season, the males are very aggressive towards one another and it is also the case with females. The pair looks for a territory where there is a crevice to deposit their eggs. They will protect juveniles even after hatching. It accommodates well to life in the Aquarium.

Its attractive coloring is mainly due to the refraction of light on the scales. They breed easily in aquariums.

Mostly herbivorous, appreciates the ripe fruits fallen from trees whose seeds it helps disperse. In the aquarium trade, it is sold under the name "herbivorous piranha". Because of its size, it is not recommended for specimens aquariums. It is bred in pisciculture.