Aquaponics/Research
Urban Farming Guys
Aquaponics overview: It seems like no one has really published a fully documented open source design for a full closed loop aquaponics system, is that the case? If so it's going to take a bit of research and prototyping to produce the first finished design. It looks like with http://theurbanfarmingguys.com/aquaponics-how-to aquaponics principles video and designs http://theurbanfarmingguys.com/wiki/knowledgebase-2/aquaculture-aquaponics/aquaponics-system-plans/40-gallon-tote-basement-system plus the OSE aquaponics page we have enough information to start with.
However, one of the difficulties with the UFGuys is that their system breaks the rule of "2x as much growing media as fish space" so in the 40-gal-tote system, there should be three totes, 2 for veggies and 1 for fish.
Measurements
For optimal production you need tools to measure the system to make sure its running correctly. There's a basic list of things to measure here for hydroponics: http://www.n55.dk/MANUALS/HOME_HYDRO/HOME_HYDRO.html Light, pH, Conductivity, Nutrients, Temperature, Water quality. What tools are used to measure those? Where are good places to get those tools?