
Closed-loop aquaponics focuses on designing aquaponics systems that that produce as much of the system’s needs (water, energy, fish, feed, heat, gas, etc.) on-site and within the system itself as possible.. Closed loop aquaponics . tom willis. how viable is aquaponics as a closed loop system? i've heard of growing insects, plants etc. for the fish, but is this truly enough to account for 100% of...