Miscallaneous cichlids

Hello everyone!

Well, my 55 gallon has finished cycling and the plants have all settled
in for the long haul. So, there I was at my LFS looking at their
selection of cichlids. Funny thing was, other than a few very obvious
ones (Oscars, Convicts, Jack Dempseys, Parrots, Fire Mouth - these all
had their own tanks) most were housed in a large 20gal tank and labelled
"Misc Sm-Med Cichlids".

Well, I looked through the Lexicon and can't find a listing for
Cichlidicus Miscilaneous, so I'm trying to figure out if these little 1"
- 1 1/2" sized guys are going to be compatible when they "grow up".
Other than walking in with a picture book and IDing each and every one
(which may not be possible given their current age and size) are there
any suggestions on how to do this?

Thanks!

mark h