For my masdevallias I have the entire bottom fill with moist wisconsin sphag too keep the humidity high. As well I have three ice packs. The moist moss helps conduct the cool temps around the pots too and it hides the pots keeping it looking nice. One masd. is starting to stick is roots out of the pot...happy one
Then I have two fluorscent tubes over my 10 gallon tank because I don't have enough light reaching it for sure
And I better get a computer fan I think they can do better with one