Great pictures! Is that your setup there? I'm impressed!
Late last year I went to Dallas and attended a weekend workshop put on by the Colorado Aquaponics people. It was fantastic and I came home with a complete aquaponics system. I haven't set it up yet because I want to build a greenhouse for it so I can use it all year round. I'm fearful of keeping it out all winter long.
The entire concept is highly exciting to me.