Agree with leiarius marmoratusLooks like a juvenile achara catfish.
Def not an leiarius pictus. Its an possibility that it is an Perrunichthys perruno.Marble salfin catfish
Ill se if i can get a picture sent to me from a friend who has an alleged perruno imported from venezuela. I know for sure its imported from venezuela since i ordered fish from that shipment to and the importer was one of the largest importer privatly around here before he resided and shut down his business.Just a Marbled Pim Catfish, no sailfin. P. perruno is indistinguishable by a layman from L. marmoratus / longibarbis, plus has never been in the trade for decades, no export from Lake Maracaibo.
I wish it wasMarble salfin catfish