I wish my two 1/4 acre ponds were a bit bigger, but not bigger than 1/2 acre each. I know people with ponds from 1/4 acre to 7 acres. The big ones are not managed as much due to expenses. Feed costs get huge quickly after a couple of acres unless the pond is stocked with limited quantities of non reproducing fish. Might as well have the smaller body of water and stock the same IMO. If my ponds were larger, I would have stocked more fish. What I already have will produce more fish than we can use, from a farming perspective. If I need to drain and refill, it doesn't seem an insurmountable chore.