Well the orchidarium came with two fans located at the top....they move the air around pretty well....but then I had to mess with things since I was having problems maintaining humidity when I purchased it (was around 50% and I wanted around 70% to 80% for the mounted orchids) so I purchased a MistKing system and added an additional fan. The mist gets on the ceiling of the orchidarium and the water drips down, I think what may have been happening was that the water was dripping into the potting medium....I have most of the plants positioned so that they don't get the drips on them and cause problems. I only have one other plant that I have seen this fungal looking stuff on it but I thought it went away with the physan treatment....I will have to unpot it and see what is really going on deeper in the medium.
When you say a 10-minute soak in a tablespoon of Physan per gallon will absolutely wipe out any such pathogen, would I still see the fungus attached and it be dead and I just need to scrub it off? I have a white fungus that grows slowly on my mounted orchids that are on a particular type of wood as well....Physan barely keeps it at bay, and it is only on the wood mounts, not the cork, and that is in both orchidariums (I have an Exo-Terra I converted).
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