The bubble units have lid which flips to give more room, flipped it today! The roots were wandering around the airstone tube so timed the flip quite well. Took cuttings from them all today for 1st crop. Plan is to keep the mother's in these units, cuttings, when big enough, will go in autopot system. The great tangle of roots of the mothers will be a nice crop in their own right! In due course best cuttings will replace these mothers...