Here is 1 month's growth in a 5 tilapia system.
I can't find the pictures from when I shut it down, but the results were pretty remarkable. From 2 DWC half-barrels + 1 gravel half-barrel + 1 55gallon culture tank I harvested 11 pounds of cherry tomatoes, 2 pounds of basil, 3 heads of the nastiest lettuce I have ever tasted (i think it was too hot for lettuce), 5-6 lbs of cucumbers (the little pickle kind), and 6 small ears of corn. The big problem was I used Lowe's "river gravel" in the center growbed. This was some derivation of limestone and buffered my pH above 8, causing me to lose all the fish!
This year I'm going to do it differently. I'm going to use hydroton (expanded clay.. pH neutral) in the growbeds and keep the culture tanks (Nx300g IBC's or 1x900g timber pond) in the garage where I can control the temps better. I'm also using a rotating biological contactor so I can safely disconnect the growbeds if something goes awry.
sorry for the the thread steal.
-ellie