Ok...Pond was completely drained and all fish removed last month. Would love to put bass, bluegill, and catfish in the pond but I'm not so sure they would coexist very well in a half acre pond. Obviously bass of trophy quality are out of the question but 2-3 pound fish should definately be within the realm of possibility. Before draining the pond, water stayed muddy. It was only 6' deep at the deepest and had numerous yellow catfish(i'm assuming this is what is being referred to as bullheads?) Never really tried to clear the muddy water (Ag Lime) due to the fact that I knew I was going to be draining and extending. After draining, there was absolutely no grass or any plant life whatsoever in the pond. I will probably be feeding as my wife enjoys sitting at the pond and watching them feed. There are some trees that surround the pond but none are within 15 yards of the edge. Hope this message wasn't too hard to decipher and thanks for the advice.