Catfish-the Changeling (Synodontis nigriventris)
Prevails in the regions: the basin of the Congo
Body length: 10 cm
Food: carnivorous fish
Habitat: fresh water
Catfish-shifter, or synodontis nigriventris, belongs to the family mochokidae. The homeland of this species is Africa, and to meet him in the natural environment, it is necessary to visit the Congo basin. Shifters reach a length of 10 cm inhabit fresh water and belong to the group of predatory fish.
In Europe the catfish-the shapeshifter first appeared relatively recently – in 1950 in Amsterdam. In our days the activity of this species, both in captivity and in natural conditions, are poorly understood. Continue reading
Seahorse refers to ray-finned fish. Forms a genus in which there are 54 species. They live in shallow waters in tropical and subtropical marine waters worldwide. In the Pacific ocean are found from North to South America. In the Atlantic from Nova Scotia and further South. There is a colony at the mouths of the European rivers. For example, in the Thames. Three species live in the Mediterranean sea.
Body length varies from 1.5 to 35 cm External appearance resembles a chess knight. The skin is thin and stretched bony plates in the form of rings. Each type have their number of rings. The neck is flexible and well expressed. For seahorses is characterized by vertical rather than horizontal movement in the water. They tremble dorsal fin and pectoral fins behind the eyes.
This is the most slow swimming fish in the world. Their top speed is 2-1,5 km/h. Caudal fin not. These bad swimmers most of the time are stationary, hooked prehensile tails for marine vegetation. Snout long and tubular end stigma. It works like a pipette, drawing the food along with water. Eyes have the ability to move, independently from each other. Continue reading
There are about 1200 species of catfishes that are divided into 31 families and 150 genera. Typical external characteristics, distribution, conditions of keeping and feeding of catfish, will be discussed in the article.
Under the name “catfish” joins more than 1200 species of whiskered fish that is distributed into 31 families and 150 genera. Most of them are found in freshwater reservoirs 5 continents, and only 1% of their number are marine inhabitants. Only in the rivers and lakes of South America is home to about 1000 species of catfish.
Representatives of catfishes are very similar in body structure with Cypriniformes. The body of aquarium fish catfish often covered with bony plates, or protected by spikes. However, aquarium fish catfish no scales present, their body is considered naked. Around the mouth there are several pairs of whiskers. Continue reading