I've done the convict thing in the past. I don't see myself ever going that route again. They are like a plague. They breed non-stop and then bully every fish around them. They are surprisingly tough for their size though.
Based on your guys advice I decided to go with some red hook silver dollars. I picked up 6 and have them in my grow out tank for now. I'll update how they do once I add them to the big tank.