That was almost exactly my first thought as well :yes:Those are funky very nice fish
Lamontichthys don't have that kind of frilly mouth barbs.i would say Lamontichthys of some kind
i don't know the sp. but these look a little snub nosed to be those don't you think?Just glancing through other pictures, Loricaria sp. 'Atabapo', looks to be good fit.