The invention relates to an aquaponic facility with closed water circulation,including at least one aquaculture unit and at least one hydroponic unit,characterized in that the aquaculture unit has at least one water outlet whichisfunctionally connected with the hydroponic unit by a one-way valve such thatwater from the aquaculture unit can be supplied to the hydroponic unit, andthehydroponic unit has at least one cold trap, wherein the at least one cold trapisfunctionally connected with the aquaculture unit in such a way that the waterobtained from the at least one cold trap can be supplied to the aquacultureunit,as well as its use.
