)This is a bit harsh on Jewel cichlids to say the least. One of the most aggressive of all fish, really? Undoubtably you'll get the odd totally obnixious individual, but overall they cohabit well most other fish, including cichlids of equal/greater size and they all but completely ignore catfish.I feel I should warn you that jewel cichlids are one the most aggressive of all fish; I wouldn't be at all surprised if you end up with one of them after it's killed the other, and the BN; every single jewel I've ever known has ended up on it's own...unless one of a mated pair and then you'd need to start off with 5 or 6 juveniles an let them pair up (at least you won't have to worry about rehoming the others)
) I've ever come across have been nutters, although, to be fair, they've all been dumped on me for killing their tankmates, so maybe I've only seen the worst of them!