I have a 29 gallon tank we just moved 2 congo tetras, a trio of dwarf gourami's, a pair of small cories and a small pleco (will move to a larger tank once he gets bigger). I think we will be purchasing a couple rainbows, possibly celebese or other smaller variety. The main goal is an angel or two or three. Trouble is, I don't really know how many. The only angels we've ever owned was when we were younger and didn't know anything so experience is zero. I'm sure we can get one but I know my wife will want more than one. I'm pretty sure 2 would end up fighting, correct? Do you think I could fit a trio? We really havn't investigated the different species yet and I know they all get different sizes. Is there one type that would be better sized? Better tempered? Less likely to fight in pairs? The congos are a m/f pair but I don't know how likely they are to spawn and if they get aggressive. What about a m/f angel pair? I've heard they get aggressive but what about to the fish I have? thanks for any advice, Kyle