Thanks for your answers! They were in this shape when i bought them and have not been beaten up by the Tropheus (for what I have seen). Of course if they
don´t recover I have to put them in an aquarium with more suitable companions!

Thank you for your reply and leading me in the right direction :-BD It is certainly a Hoplo Catfish when i compare with pictures i find on the net. Maybe a Megalechis thoracata (Spotted Hoplo)? I feed my Tropheus mainly NLS sinking cichlid pellets and these catfish seem to like them too. Along with ...

Bought this two catfishes at an auction a month ago and they were sold as Synodontis. But are they really Synodontis and are they the same species? I´m thinking of the shape of the head .... They are about 14 cm and active all day constantly vacuuming the bottom searching for food. They go along ...