You should talk to Rainman about tilapia stocking there have been ponds that have actually gained significant depth from the tilapia's feeding action. They eat the bacteria that is breaking down the detritus on the bottom of the pond, and also a significant amount of the actual detritus as well. As an added benefit their constant foraging will help to turn the bottom debris, speeding its decomposition. Hopefully Rex will chime in here, and explain it a bit better. I believe he stocked a pond in Tennessee that gained significant depth in a single season. After I stocked them in my pond I had a heavy algae bloom, that I am primarily attributing to the release of nutrients locked up in detritus from the tilapia's feeding action. The bloom lasted heavily for a couple weeks, and has now died down a bit. Check into it, they might be worth a try to gain some depth?
