This is a mud pond that's been used only for raising koi fry for one season with agressive feedings. I've had good luck spawning them in late may or early june and getting 5-6" of growth by October when I would bring them in for the winter.
I've had luck with the pond easily supporting 300 4-6" fingerlings after agressive monthly culling. If you guys think this size water body can handle up to 125# maybe I've been way off on how many fish this could actually keep. I would guess the koi fingerlings are maybe a few ounces each so at the end of the seasons I might be up to 30 lbs at the most.
Now I'm getting excited about this. I'd really like to be able to fish here in my back yard but I would never throw a hook into the water with koi.