Help!!!
 

I'm struggling to contain an infestation of some sort in my grow tent of the minute...sprayed it with Physan 20 and I think its gone worse actually...Almost all of my plants turned yellow...I dunno if its too much of the spray because I know it can be lethal as well if you overdo it...I'm actually half mourning of the minute since majority of my collection died or is going that way anyway...Lesson learned from this...I'm actually in the process of treating some of it with cinnamon and developing a cinnamon spray as a fungicide...will also clean my grow tent in the process...this is the first time that's happened...I'm also in the process of titrating my humidification that's also probably one of the reasons rots and mold made its way inside...50-60% is ok more than that not really advisable as in my experience...Any more suggestions please from you guys would be of great help...

:bump:
good luck!

So sorry to hear of your losses. I lost a bunch of catts and a brass nodosa to black rot before I figured out what was happening. Here is a good link that might provide some useful info (this orchid society has my sincere appreciation): Orchid Pests, Orchid Diseases

High humidity is generally fine -eve good - with orchids... as long as you have sufficient air movement. stagnant humid air is a no-no.

Thanks guys for the info and the links...Really do appreciate it...I will carry on with the suggestions and I will purchase extra clip fans coz I have to say my grow tent is slightly bigger about 1mx1mx2m...Discus I know high humidity is really important but I think my fault was I underestimated the size of my tent...my intake fan is only 4 inches which is really small and I really need to get the air circulating....Thanks for the input guys...))