I'm new to aquaponics and everything, but I just read on a website about needing a permit to have tilapia Is this just for commercial aspects? Do I need to have a permit just to have tilapia in the basement? I'm in Illinois, but I'm wondering what all is the legality of having non-native fish in a tank here. I'm pretty sure that everything is pretty much fine, but I just want to check with all of you on what you know about aquaculture and fish regulations. What have you run into?