I have a tank (pond) in central Tx. that is totally murky with suspended clay. There is one large oak tree in the bottom (15' deep) and that is the only structure. I stocked cc's four years ago with fathead minnows and feed it with a spin cast feeder at the rate of about 4 lb. per day. They are doing great and took out a 10 lb'er 1 week ago. We also caught a bunch (10) of 7-8 inch cc's. Structure is not a big deal unless you have other predators in there.