yes, forgot bout that bit , change/freshen the air daily by removing bottom or lid/cap as you observe for fungal or tissue problems or cut slats in sides like cattleya pots or even a window.as a open/close door. i use the open/close window for nepenthes propagation from seed and deflasking young orchid plants. All share a requirement of high humidity essential for survival at such a vulverable stage.

When freshening the air in bottle all i do is remove base, have a good look,spray upwards with fresh water to freshen interior of bottle, replace base and re hung. Continue until fresh new white roots with bright green tips. Catts only produce new roots on new growth.