peeponics

I recently saw a video of a hydroponics system where the nutrients were provided with diluted water and n fixing plants. Has anyone ever done this and if so how successful was it?

Peeponics is a common method to start cycling of an aquaponic system. I've done it myself. One of the tricks is to bottle the pee for several days. Over those days the pH of the pee will rise dramatically and produce ammonia (which will help feed bacteria in the AP system). At the same time, this highly alkaline environment kills off bugs that may be present.

Technically, I can't think of a reason you couldn't do this indefinitely, but the freak-out factor is pretty high.

I'm new to permaculture and I can say for a fact that the freak out factor is definitely high!  lol

"Oh, yes. 2010 was a good vintage."  lol