If you really like your current fishery, then I would not change it. I am a strong believer in, "If it ain't broke, don't fix it."
That being said, there are a lot of members that have had very good experiences with their tilapia!
1.) They will eat filamentous algae in a pond!
2.) They are a supplemental forage. Even if the LMB eat BG most of the year, gorging on sluggish tilapia as the water temps cool may be a big bonus for the bass - going into a low calorie, potentially stressful time of year.
