I had read about the predation by tilapia before your post ML, but I will say my experience is a little different. I have large tilapia and the only fry that they eat are incidental while eating pellets. There is some predation when the tilapia are juniors but it seems to be for only a short period of time. I have fry from several species and for the most part they free range. The pacu probably eat more than the tilapia. But, I have to add that none of my reproducers are predators and the tilapia might very well be able to tell the difference.
