If you want something with some good size a nice couple of severums or if your after colour you could put in a group of rainbow cichlids or some geophagus. I've kept all these with blue Acara I've also kept a group of curviceps and keyhole cichlids with them. There are so many nice South American cichlids too choose from its all about personal preference and availability, as for a bigger tank I know what you mean took me a while to talk the mrs into a 150G.
Good luck with whatever you decide to go with and I'd love to see some pics.
Good luck with whatever you decide to go with and I'd love to see some pics.

