I have a 3 acre pond that I started working on last year after discovering this site. The pond was bass heavy and FA heavy.
I culled @75 stunted bass and later after reasearching more I stocked 75 8-10" tilapia ( nile/blue hybrids)

The tilapia were nice to watch but also due to their lite color were often preyed on by birds, herons and ospreys alike.

Eventually they got hudge really liked the pellets, never saw a big difference in FA but I could watch them pull on it and graze like cattle

Just after christmas they died off and had to dig a big hole. Some were as large as the end of my boat paddle close to 3lbs.

So I made my mind up not to get any more due to the lack of FA management.
That was before I went fishing this spring. The size of my bass had grown exponentially. My bream population at the feeder seemed to have almost doubled as well. I don't know if it was the culling, the tilapia or both but I put 150 smaller 4-6" tilapia last week to keep this growth going

Just my totally newby unbiased tilapia observations