Hey I just wanted to add. The male tilapia will create beds and guard them loosely. They will go back and forth and try to entice ripe females to lay in their beds where the eggs are deposited, fertilized, and then gathered by the female for mouth brooding. A male will work the bed as long as females are around and interested in laying. I doubt they are competing much with your other fish as they tend to place their beds right along shore even large tilapia are almost on the shoreline in my experience. They also most times will space them out a good amount. Bluegill and bass will bed in deeper water without an issue.

I feel your pain with the rain. My well is flowing and the water still drops. It is just too dry for the ponds on the east coast here.

Now is a good time to bucket stock bluegill I caught 35 last week to mix up my genetics. Also I think your tilapia are a great forage source for your bass.