Growing food using a closed-loop system. Rocks instead of soil + fish poop continuously cycling through the system for nutrients = lots of delicious, healthy, organic food!
Small-Scale Aquaponics Food Production — Food and Agriculture Organization of the U.N.
Aquaponics is the term used to describe a system that combines hydroponics (growing plants without soil) and aquaculture (fish farming). Learn more about this fascinating method of farming.