Ya the little Aimara is sold. I'm putting together another setup for a larger Aimara at about 16". Oliver is great to deal with and i really love these wolffish, great predators. From my experience with owning two curupira it wasnt really them starting problems, but rather other fish "thinking" they would pick on it, until of course they see the nasty attitude of a curupira flaring and biting demanding respect. So i would think maybe the jar would start the fights..prob won't be a good combo as they grow larger. There is a percentage of curupira that just don't like tank mates though...