There is a lively debate at Lawrence London's permaculture forum about Aquaponics. Toby is arguing that Aquaponics can be a legitimate part of Permaculture if it is appropriate to the context of the design. I would like to know if anyone here has utilized Aquaponics in their designs and if so, how close to self-sufficient you have become at providing feed for the fish from the property without off-property inputs. How did you achieve this? Or if you know of anyone who has approached achievement of this goal.