ruisseau - Discover fishes living in these biotopes

It is equipped with gills and respiratory organs, so it can breathe underwater or on the surface. In breeding season, it built a nest with viscous bubbles that shelters the eggs. It easily breeds in captivity and there are several farmed species.

It is not an eel, it owes its name to the shape of it body. It is a nocturnal species and during the day it hides in the sand. It is threatened because of overfishing. In captivity, it must be introduced in a large aquarium where there are no small fish.

The rainbow shiner is a schooling fish native to North America. Sexual dimorphism is pronounced: Females have a brown-gold hue with silver scales. Males, on the other hand, have a silver-blue coloration highlighted with pink and purple.

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.