I know there are 21 catfish in the Pangasius genus. I think it could be one of these... other than (Pangasius sanitwongsei) or (Pangasianodon hypophthalmus). There was another tank with baby iridescent sharks in the store going for 4 dollars...however the only reason I got this catfish was because a fellow MFK friend had been looking for one...and because it was in another tank because they had been brought in as paroons...labeled as paroons...and cost 5 times more than the ids, lol. But who knows...now it is sitting in my conjag fry tank while I'm scratching my head. Regardless, I'm still committed to finding my buddy his paroon...it's LA after all...we do see just about everything.