We found some baby Convict Cichlids just a few minutes ago. Those are the first of that species, but we've also had baby Guppies (these are livebearers and we raised about 50 to adulthood), Bronze Corys (a small type of catfish--only one has survived so far, and it isn't quite adult yet. This is the only egg-laying species of fish until the Convict Cichlids that has produced babies for us), Platys (one of which has survived), and Swordtails (all of which died). The Convict Cichlids are unique out of those in that they protect their babies until they're old enough to fend for themselves. I would post pictures, but Flickr was updated again, and I can't figure out how to link to photos yet...

EDIT:

In case you're interested, here are some links to pictures of some of the fish I mentioned:

an adult Convict Cichlid, a baby guppy, another one, and an adult Cory (not the same species as the babies were).