Make that tri-ditto on george's post I stocked 200 in a .4 acre pond and even though we have taken about 100 out I now have the big vacuum cleaners of 7-10 pounds coming up. One other note is I put a couple of old hollowed out logs about 10 ft long in the pond and I have had several spawns so we are getting a bunch of nice eating size cats also. The bass seem to keep them in check as I am not getting over run with little one's. Guess I have been lucky.