My current situation does not allow for me to try out aquaponics quite yet. But I have done LOADS of research on the subject. I believe aquaponics is a huge key to sustainable food for the world in the near future. With the correct system we can be growing food even in the desert. I personally believe that its not as big as it could be yet because of corporate control over the food market. Much in the same way I believe we have potential for green powered cars for the masses but the big oil guys want to keep us burning gasoline.