With the right conditions, bluegill alone could sustain largemouth bass up to trophy size. Consider a feeding program with Aquamax 500 to grow these intermediate bluegill out to 6"+. A feeding program along with continued bass harvest may be all you need to do at this time.

However, with 15 acres of water you may have an open niche in the system for threadfin shad. You need a plankton bloom and some open water to sustain threadfin shad. Clear water with significant submerged vegetation is not good threadfin habitat.

Tilapia are another good forage fish, and they have to be restocked every spring.

I'm sure some others will chime in to this one.

It's ALL about the fish!