I haven't tried it, but it should work. You have a generally peaceful surface dweller and a generally peaceful bottom level fish who are compatible in size and like the same water conditions. Granted, it always depends on the personality of the individual fish (while most red wolves are sociable, a select few can be vicious), but on the whole there's no reason that this shouldn't work. If I were doing a red wolf tank, I would have no hesitation about putting a hujeta or school of hujetas with it.