On the verge of giving up with Masdevallia and Pleurothallis

[jcec1]

I just grow my masdies and pleuros in an unheated spare bedroom, not enclosed just sitting on a table in a west facing window. In the winter probably about 14-16C and summer 18-20C - I think the lack of air movement will be encouraging rot.

I don't spray them, just water once or twice a week - I use the water retentive orchid compost that you can buy in most supermarkets- small bark and clay substrate.