A 1/4 acre only supports a VERY limited amount of biomass... It probably will only support 30-40 pounds of bass at most. Managing a reproducing fishery in such a small body of water is a real challenge. If it were me, I would poison off your fish and start over utilizing a set of none reproducing fish such as a HBG/CC/HSB fishery where you can manage numbers through stocking and harvesting without the worry/limited worry of reproduction. That combination can also handle heavier fishing pressure better as well.