I'd start out slowly on the carp. We put 7 approx. 12 inches long in my neighbors 1 acre pond last summer. It was weed infested. This year there are no weeds. Thus, no hiding place for baby fish. I think the State of Texas allows 10 per acre. That has turned out to be too many. However, I have also read that they have a fairly high mortality rate so we're not sure what the future will bring.