Aquaponics is the combination of growing plants and fish together in an aquatic environment with little or no soil.  It is a combination of aquaculture, which is raising fish, and hydroponics, which is growing plants without soil.  The fish waste and other organic material provide a natural fertilizer which is broken down and converted by bacteria into nutrition for the plants.  The plants gradually filter the nourishing water as it is returned to the fish tanks.  This cycle demonstrates a complete nitrogen cycle in a natural ecosystem.  Vegetables grown in this way are a premium and healthy product.