Sorry, should have been more specific, Tom-DE.
Culture-wise, I grow this next to my wet wall in the greenhouse, shaded afternoon light, watered 3-5 times a week. Tom was growing this mounted to cork, so I left it that way. I normally see them grown in baskets, I think, so my watering schedule may be different from most people who grow this. I've only had it since fall of last year. It has matured a new growth in that time, so I think it's happy enough.