Some of them do but so do a lot of catfish species....when they are removed from water.does oxydoras make audible noises? coz this one does
I think it is some kind of Hassar and upon checking the photos of juveniles for comparison I've noticed those same branched barbels as the fish in this threadLooks like a Hassar species to me, probably orestis or wilderi http://www.planetcatfish.com/common/genus.php?genus_id=25#39 -- stare at the photos and see which one looks the closest.
These guys have a funny common name - Black top mouse catfish