I am looking at buiding a small pond on my property. Originally it was just going to be to have a watering hole for the wildlife but I am getting carried away. Now I am thinking I would like to put fish in it. Now to my question. I mean I know you can keep a fish or two in a 5 gallon aquarium but with is the minimum practical size for a pond to hold some catfish for me, the wife and kid to fish in on occasion. Basically I am curious about what would be the minimum square footage and depth required to sustain enough fish so that a family of three could fish on occasion.