Doing awesome bsfman. In regards to the comment about eating them, I was more concerened with run off into the water; pesticides, fertilizers, oil, etc. I live on the Bay here in Tampa and we always have flashing sign trailers (best way to describe them) with warnings. Citizens seen dumping oil into Bay, please report crimes. Red tide in the Bay, swim at your own risk and do not eat the fish. Run off off of fertilizers is also a huge problem, which is why no fertilizer is sold during the summer months. I guess where you are it isn't as filled with idiots that don't care about the water or environment and red tide is only a saltwater problem.
What are you catching those tilapia on? I have a compost bin of red wigglers, think theyd work?