In my opinion there is a transition size around 10 acres. If you have more water than that, you can do more and have more diversity. If you have a one to two acre pond, most likely, it will be single purposed. IE a Bass/Bluegill pond or a catfish pond, but if you try to have LMB, BG, Catfish, and crappie in a two acre pond, it will be nearly impossible to manage.
Our big pond is larger than 10 acres and we love it and the diversity it affords.
