fleuve - 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.

During breeding, the male digs a hole in the sand. A female will deposit it eggs that it will shelter in its mouth. After hatching, the young remain close to the adults. In case of danger, they take refuge in the mouths of their parents. It is bred in pisciculture.

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.

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.

Like many catfish species, it hunts at night. The female is larger than the male and lays huge amounts of eggs (8 million eggs per kilo). Because of its size and its diet, you should not keep it in a private aquarium.