Phalaenopsis legions - What is this?

[Clawhammer]

4 of my phals in my grow room have something weird going on with the leaves. I don't see any pests. Damage to both top and bottom of the leaves.
Thoughts?

[IMG]Untitled by Eric, on Flickr[/IMG]

[IMG]Untitled by Eric, on Flickr[/IMG]

[IMG]Untitled by Eric, on Flickr[/IMG]

[IMG]Untitled by Eric, on Flickr[/IMG]

---------- Post added at 08:32 AM ---------- Previous post was at 08:25 AM ----------

Update. Broke out the magnifying glass, little brick red dots amongst the damage, no webbing. Thinking false spider mites.