Is it possible to overwater a mounted orchid?

[RosieC]

While I've got the watering of potted Phals down well, I still worry all the time about overwatering any orchid which likes to stay moist. I think I am underwatering my potted miltoiopsis NoID as a result of being scared of overwatering.

Well, I now have a mounted orchid (Miltonia spectabilis - part of the summer project) and that also needs to be kept moist from what I have read.

So my question is... "is it possible to overwater a mounted orchid?"

I have found that if I water it in the morning (dunk for a few min) the moss between the plant and the mount is still just moist when I go to bed but is very dry by the next morning.

So I thought that maybe I should water twice a day, but then I start worrying again that I may end up overwatering and causing root rot.

I'm thinking that a mounted orchid will get more air and so this is less likely to be a problem but I still worry I'm going to kill it.