I had those three fish in an 1100 gallon metal stock tank all winter. They were fed fathead minnows, worms and pellets. They all started out the same size. I caught them out of my Dad's pond and one of my other ponds last fall.
I've also caught a few RES/BG hybrdis from an interstate borrow pit in the last couple of weeks. I'll try to get pictures of those later.
I've never seen a picture of these three fish together, so I thought I'd be Cody-esque, and get a good photo. I know Bill Cody would have done a better job, though. He would have had them lined up on the cutting board better, and he would have had their fins more evenly spread open.

Two other notes...
Those fish came from a pond that had no fish in it, and I put in male bluegill (not CSBG), and female redears.
AND, I think that might actually be a female. I plan on getting photos of one of the apparent males.