Hexagon Twig Catfish (Farlowella nattereri)
Farlowella nattereri is a species of armored catfish of the family native to Bolivia, Brazil, Colombia, Ecuador, Guyana and Peru. It occurs in the upper Essequibo and Amazon basins. This species grows to a length of 26.5 centimetres (10.4 in).
In Aquariums and Zoos: rare in european aquariums