Yeah, I'm with dking on this one..
remember, even though they are peaceful cichlids, they are still cichlids. Males are very territorial.
i had a 20g before, and 2 males by accident. They quarrelled the first 2 months, then one roamed around 3/4 of the tank, and the other was stuck in the corner behind the
driftwood. if he came out, he was attacked right away.
In my 35g I have 6 glowlight tetra, and they look pretty nice together. But most other Tetra look good with the Rams. Most fish do better when there is a dither fish, it shows them that its safe to come out. But I just looked at my tank, and my glowlights are hiding in the plants, and my Ram and Angel are out swimming around... haha silly fish