BTW, I was wondering why I'm doing a lot better with bellina than with the plain violacea. I keep them in the same medium (s/h without the reservoir), and so is the humidity (60%), watering schedule (not allowed to dry completely), and light. Yet somehow the bellina thrives while the sumatran violacea sulks and occasionally loses another root. It shows great progress in one month, then suddenly it stalls.
Any thoughts?