To everyone else,
You are confusing him. His stock list of two bp's and a rainbow that he now wants will work just fine in this tank. Do him a favor and stop giving other suggestions as you are not helping him right now. Unless you have something else to say about the BP's and a rainbow in this tank together I would just save it.
Oscaroo,
Sounds good to me and I with you all the luck with everything.
-Cage
I was merely giving him an option of a small Cichlid. Not trying to confuse him at all.
Some people said that I could not get convicts.
I suggested Cryptoheros because most of them are not as aggressive as Convicts. A Honduran Red Point could work as they're not as aggressive either. Just giving you options to look at that will keep your bio load down and something easy to manage. Rather it be a couple Rainbows or some other less aggressive dwarf cichlid, you'll be ok. Rainbows are beautiful fish as well. If that's what you fancy, go with it. Good luck with whatever you decide.