An apparatus for continuous growth and production of a product substance. The apparatus may comprise an input unit for receiving at least one starting material, wherein the starting material is one of at least an aquatic organism； a growing unit for continuous aquatic growth of the at least one starting material to produce at least a culture； a buffering unit for accumulating and upholding at least a portion of the culture grown in the growing unit, wherein the buffering unit is configured to balance between demand and supply of a product substance produced by the apparatus； a nozzle for delivery of a demanded fraction of the upheld portion of the culture as the product substance； and a control unit connected to the input unit, the growing unit, the buffering unit and configured to control the operation of the apparatus.
