A method for adjusting the vertical position of hydroponic supports of a growing system is provided. The supports are used for growing crops. A relative position between the two supports is adjustable. Actual vertical position data for the supports is received and compared with the desired data. The actual vertical position of a first support is adjusted relative to an adjacent second support when the actual data is different from the desired data. A growing system for optimizing crop production comprises generally horizontal hydroponic supports adapted to receive nutrients for feeding the crops. A position actuator is connected to the supports to vertically move them relative to one another. A position-adjusting module receives actual vertical position data of the supports and compared it with the desired data. An actuation command is transmitted to the position actuator when the actual position is different from the desired position.