Jack,
I made the mistake of over stocking my first CC pond. It is almost 1/3 acre when completely full, but drops to about 1/7 acre by mid fall. I had oxygen problems early in the second summer, which is why I suggested getting half your CC out by the end of the second spring. Raising 50 or so CC by heavy feeding is doable in a 1/4 acre pond, even unaerated, but the timing of stocking and harvest must be right.
