I have controlled my runoff last year by lessoning the amount that can get into the pond..I was draining about 20 acres which was way too much I found out...everytime it rained I had water coming in from the sides..I have since dammed up the problem areas with #3 lime rock and rip rap and now only have a couple acre runoff...I fed the fish last evening and they very very frisky and seem in good health..We stocked 2 years ago and the first gen. catfish are now 7-8 pounds, the first gen. gills and redears and consistently over 9 inches and a few 10+ inches..the bass were not stocked till that fall but are all 15"+ and 2-2.5 pounds...I have at least 5 sizes of each species now and a huge fathead minnow population so I think things are good just don't want issues to disrupt things..Thanks for your input, David.