Thanks for your help - we want to catch and release in the early stages then catch and have a catfish fry in the later stages. We plan to feed the fish and let the pond develop its own ecosystem in time. I am told that a few mud cat will bottom feed and help ensure that the pond is sealed. Our pond is predominately clay but I added 3500 pounds of bentonite and tilled it in before we filled it. We also have a fountain to aerate and have it on a daily timer.
This is all so new and we don't want to over do anything. We would probably harvest catfish more than other fish but want the grandkids to enjoy catching bluegill or bass just for the thrill.

Thanks again