Aquaponics Anyone?

Aquaponics is a way to grown fish and vegetables at the same time in the same water. It's a symbiotic system that uses no soil, and almost no water is consumed. It is usually implemented in a greenhouse. Aquaponics may be a good answer for feeding the world as conventional food sources decline. The ancient Aztecs did primitive aquaponics in little islands called 'chinampas,' and the Chinese have used the technique for some time, most recently encouraging units in city-dwellers' apartments.