I have too many large bluegills, just can't catch enough. A four foot long juvenile tarpon could correct this problem!
Heck, I just learned that a bull shark can survive in freshwater.
A small one of those should work fine for BG.
However, you need to tell your kids and grandkids not to swim in that pond anymore. Now if some winged poachers or two-legged poachers just happen to miss the fine print on your "Bull shark warning sign", then that is just bad luck (for them)!
