Hey Jaws, the first link leads to an error. Looks incomplete. But it probably is that thread were Jeff Rapps' same photo of the same fish but ID'ed differently (a while ago) was discussed and where Kirk
Yellowcat
expressed his expert opinion about it that it looks similar to bufonis but may not exactly be it.
I'd also repost the photo from Jeff's current for sale page or from that thread where I posted it (note w/o asking Jeff's permission, which perhaps you don't want to repeat).
In the name of making sure of the fish ID, I see no reason why Jeff would mind but it'd be polite to ask first because Jeff's thankful for that.
As for the fish, per our PM discussion, just based on sizes alone, I am skeptical of the Rhyacoglanis ID. Plus, Rhya = fast water dwelling. There are rarely big fish in shallow fast water that are not shaped with a minimalistic, hydrodynamic face-on profile or have means to hold on to things like pleco do.
From looking at the photo of the catfish, it doesn't strike me as having the hydrodynamic proportions of an ATF. It's too bulky.
Just some thought which may be worthless as small Pseudopims are outside of my scope of attention usually.
Now I cheer you get the mangurus

Cuz after it eats all your fish-cracker and fish-stick snack fish and grows to 2'+, you can send it to me or to Kirk in its own tank and water first class

Seriously though, it'd be very likely a first in the hobby.