Aquaponic system

Saro explaining how aquaponics works at a workshop. Here is a quick explanation:

Aquaponics is a sustainable food production system that combines the cultivation of vegetables and fish. It is one of the best ways to produce food in the city, because it hardly takes up any space. The fish excrement feeds the plants, and the plants clean the water for the fish. In this way, not a drop is wasted.
In this workshop participants learn how to build a miniponics system, a miniature, home-edition of the bigger Aquaponics towers.