I am about to build a small pond in central Indiana using a backhoe. The pond will be fed by an artesian well. I will leave it unstocked for the summer to see if it stays cool enough for trout, but if not, I will try to use for building forage fish populations. I am a novice operator and would like to keep the pond as small as possible while making it functional. I am looking for suggested depths, dimensions and slopes. I think that I know how to make it water tight.