I recently finished installing an aquaponics system at a friends rest/hotel in Santa Teresa, Costa Rica. In the next couple of weeks we will get the fish and the vegetables going. I made a little trial run video of the system to help explain to others how it works. The system uses water pressure with one pump to operate. It also uses gravity fed grow tubes with a bio filter grow bed and a bell siphon.
The system is estimated to handle between 50 and 75 fish in different growth stages, and 100 small space vegetables with shorter root systems i.e., greens, and salad herbs plus tomatoes, chile and basil in the 5’x3′ grow bed that is 16 inches deep.
The system uses two filters in the back one collects solids and one is used as sump for the system.