OohFeeshy
It's only forever; not long at all...
That's not really the point though- the Botia has an adult size of about 5" and is social, the hillstream isn't exactly the ideal candidate for a tropical tank.
You say huge waste producer, but did you actually read my last post? There is nothing to prove that fact, and considering most of the ammonia comes from a fish breathing where does this statement originate from? Plecos eat algae which is a low concentration food, which means they must eat a lot of it for there to be a considerable amount of ammonia, they can poo as much as they wish, but does that mean that the poo is of a high ammonia concentration?
Fair comment regarding the pellets, Yeah, I have kept them, kept a few bristlenoses, I don't find them to be that much of a waste producer to be honest. to be fair to the OP, he is trying to get it re-homed.
Regarding the comment about the bettas and 5 gallons, I don't recall ever saying that.