The present disclosure describes a aquaculture apparatus for mounting on a supporting structure 114 of an floating aquaculture cage 110, the supporting structure being configured for suspending a net 112 in water. The aquaculture apparatus includes a net support member 144 for spacing at least a portion of the net 112 from the supporting structure 114 of the cage 110 so that any aquaculture stock in the proximity of the supporting structure, for example near to the water surface, may be kept away from at least part of the net, for example, a moving part of the net. The net support member 144 may be used to allow the net 112 to be cleaned, repaired or replaced as required. The present disclosure also describes a method for manipulating or moving the net 112 using the net support member 144 and an aquaculture apparatus comprising a net control system 146 for moving or controlling movement of an aquaculture net 112.