Put in about 50 CC at about 8" in mid fall or very early spring. Feed to satiation. Start getting them out as they reach about two pounds. Here, that takes about one full season, maybe a little more. Remove at least half of them by the start of the second summer. Remove the rest as soon as you can catch them. Some will reach five pounds by late in the second summer. I put a few too many in my first 1/4 acre pond and didn't start catching them soon enough. I know better now.
I do not have aeration, but used a pump to put in fresh water at intervals, to keep the pond near full during warm weather. If the pond didn't leak some, I would not have had to pump as often. The "secret" if any, is don't let the pond go through hot weather at full bio load with CC. Get a lot of them out after they reach eating size, but before the second summer.
