Dang Doc! I don't know what to say. Your pond seems to be exceedingly productive. Unless you are missing a size or year class of predators or prey, it seems like you have what we all strive for, a fish producing machine. Now you are faced with finding time to fish...

The tilapia will obviously move otherwise unusable nutrients into the food chain to be provide a higher carrying capacity and I assume with feed trained LMB you are feeding. You may simply be a victim of your own management success!
I'd love to hear what our plethora of outstanding lake managers like Greg, Nate and the PondBoss himself along with the many others here think.