We have a 40ac lake and have always tried to do per the LSU/AG recommendations:
bass stocked as fingerlings should
be allowed to remain in the pond until the second
summer after stocking. In most cases, no more than
30 to 35 pounds of bass per acre per year can be
removed from a fertilized pond if balanced populations
are to be maintained. This limit is reduced to
15-20 pounds in unfertilized ponds.
Whether you keep track of numbers or pounds
of fish, most of the fish harvested from a bass-bream
pond should be bream. A general recommendation is
to harvest at least 5 pounds and as much as 10 pounds
of bream for every pound of bass. In many instances,
any bluegill which is caught should be removed from
the pond, whether it is large enough to eat or not.
Redear sunfish are not as prolific as bluegill, and may
be thrown back except when bream populations are
extremely high. LINK
we have a pretty good balance of both large/small bass and bream. I always pull out the bass that are 1-2lbs every time we fish it and keep every bream and throw them in our tank that's about qtr-half acre.