Thank you for the reply! I'm planning on feeding them daily during the summer as I think their diet would suffer without it. As far as harvesting is concerned, I would guess that I would remove enough to feed a family of four every week or two. I think aerating would be wise. Is it possible to allow the pond to freeze over for the winter to accommodate ice skating and such while still allowing the catfish to survive? Would a hole or two drilled into the ice provide the oxygen exchange necessary for survival and feeding? How many full size fish could this pond support?