depends my JD or w/e seems to be pretty laied back I put him in with my mixed malawi tank and they ended up nipping at my JD alot so I had to move in a dif. tank, do you plan on putting other Africans in?? Also your JD may also pick on your other fish, how big is it? I guess its one of those you never know untill you try it. If you get a front or anything they do grow slow so if you do get a bigger tank in the future I would get more b/c they do better in colonys.I have 4 right now that are in with a ghost knife, a datnoid and a bichard(sp), a small Arowana and some balla sharks and they all are really chill and get along great =) so it works but if you do this you would def. have to get a bigger tank soon.