GVAC had a teacher do a presentation on his set up that he uses in his science classes. He does tilapia and grows different types of vegetables in a hydroponic set up using the fish waste water for the nutrients. I can't remember his name, hopefully someone else from the West side of the state will remember his name and contact or school information. And yes he does eat the fish at the end of the year, after school is out so he doesn't have to share with the students, lol.