Snrub,
I can pump the small pond dry into the big pond in a couple of hours, and fill it back in 3.5 hours from the creek, provided the creek has flowing water at the time. I only stocked about 130 small BG, 100 small RES, 65 6" CC and 30 adult BG into the pond in addition to FHM. The forage pond is only four feet deep, so they might not survive the winter in it. I might throw a cast net a few times into the small pond and see if I catch anything. It's very muddy right now, so cannot see into it.