It is indeed a Janet Craig compacta.
Unnecessary repotting is one of the most common causes of plant problems. Contrary to conventional wisdom, plants like this do not need lots of room for their roots. They do best when kept moderately potbound, as nursery growers do. Larger pots mean more soil and that soil tends to retain moisture much longer around the roots thereby increasing the possibility of inadvertent over watering. In addition, if repotting is done incorrectly, tiny root hairs are easily damaged and they do most of the work. Finally, it is very important to use a potting mix that closely matches that of the original mix. It is no wonder problems occur so often after repotting.
