My LFS has a tank of breeding red bellies. Contrary to the article referenced in this thread, it is relatively easy to spawn and raise these fish.
The setup is a 40 gallon long, and the tank includes 2 females and 3 males, each fish is approximately 5-6 inches long. Breeding color for red bellies turns a shimmering black. They spawn continually, and this group has produced 8 batches, which are pulled immediately and placed in a 10 gallon hatching tank. Spawns are anywhere from 300 to over 1000 eggs. The brooding group rarely scuffle amongst themselves.
I can pull pics of the breeding setup, and fry from several different spawns if anyone is interested.