(Thanks to NoCamels.com) Israel’s Moti Cohen builds aquaponic farms that provide people with both fish and plants to eat. The crops feed off the waste created by the fish, while the fish thrive on the oxygen made by the crops. No waste or fertilizer. Moti has been advising the UN on aquaponics.
http://nocamels.com/2013/12/israeli-visionary-creates-self-sustaining-farms-by-combining-fish-and-hydroponics/
http://www.youtube.com/watch?v=tFsrhkNEV98