For the moment, this page is basically a stub. This will be fleshed out over time with our collective agricultural knowledge.
Basically, a somewhat closed food production system. Works by growing plants in a hydroponic type system, which then feeds water through a fish tank and bacterial colony to filter and back to the hydroponics.
I've not read through this, but scanning through it, it looks informative. Back Yard Aquaponics PDF
The rest of their website looks good too: