The upside-down catfish (Synodontis nigriventris David, 1936) is one of the most recognisable and entertaining species in the family Mochokidae. It is also the smallest member of the Synodontis genus, making it ideal for moderately sized home aquariums. Native to the Congo River basin in Central Africa, this species inhabits slow-moving tributaries with dense vegetation, submerged roots and plenty of driftwood.
The Hoplo Catfish, known scientifically as Hoplosternum thoracatum (Valenciennes, 1840), is one of the most fascinating armoured catfish in the hobby. A member of the family Callichthyidae, it stands out not only for its robust, plated body but also for a remarkable physiological trait: the ability to breathe atmospheric air through a specialised intestinal respiratory organ. In my years of fishkeeping experience, this species has consistently proven to be both rewarding and surprisingly engaging to observe.
Bunocephalus bicolor is another fish that is part of the group that most amateurs call simply catfish. This is facilitated by a certain body shape and the presence of whiskers.
The ancistrus catfish is quite a funny creature. Unlike some other catfish, the ancistrus is constantly on the move and likes areas with a fast water current.