Exactly. I think these are small
Panaque. The teeth are the giveaway, if you get to see one from underneath. If they are
Panaque, then bogwood (or some other wood) in their diet is essential.
Oh, and re:
Panaqolus. This was coined in an aquarium magazine rather than a scientific journal. Proposing a name doesn't mean anything unless it is adopted by the scientific community.
Panaqolus doesn't seem to mean anything beyond the smaller species of
Panaque, which is not the sort of distintinction scientific names are normally based on. My guess would be that's why the name hasn't caught on.
Cheers,
Neale
If these are the ones now known as panaque maccus (was going to be panaquolus, but doesn't seem to have caught on), breeding sounds like harder work..