There are some different species of convicts. If you can I'd pick up wild,albino,black,and another breed (from tangledupincichlids.com from Jeff Rapps) then let these pair off. You will get some really cool looking convicts from here! You can no doubt make a few $100 dollars every month with the right combination of color. The wild ones sell for like $12 I think and you can make good money off them. If I were you I would pick up some bigger tanks and keep a lookout for some bigger tanks. It's amazing how much of a bigger variety you can have of fish, in just maybe 20 gallons larger. If you can get a 75 then that will TRIPLE your amounts of options. Just keep a lookout for good deals on larger tanks. Good luck! Im gonna start a convict breeding project soon. I'm gonna get pink convicts and wild convicts and see what I can get. I should get some nice colors. I'll keep you guys updated. Good luck though! Get a bigger tank and you have a lot bigger options.
I'M ANDREW AND I'M A FISHAHOLIC
-Andrew