Comment on ZipGrow: Vertical farming/urban agriculture systemparentComments−pault6ySibling is correct. Aquaponics is a (partially) closed loop system where fish provide nitrogen for the roots, and the plants clean the water for the fish. You still need to feed the fish and sometimes balance the water pH.
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Sibling is correct. Aquaponics is a (partially) closed loop system where fish provide nitrogen for the roots, and the plants clean the water for the fish. You still need to feed the fish and sometimes balance the water pH.