"I" myself have had a dose of those little critters,had to sterilize everything,i`ve even moved my growing space,due to all the stuff i`ve heard about "returning evictees"
gonna give it a shot with 5 plants at first, just to be sure.
we actually bring the majority of the bugs in by ourselves on clothes, hair etc.:48:
looks like hundreds of little yellow specs on the surface of the leaves.That`s the area where the mites have extracted the juices from the leaves.if you turn the leaves over you can see them, no problem with a magnifying instrument.they move, "IMO" they looked white.
if an infestation is left un-chalenged,or not noticed as a bug problem the mites will create "web like" structures from leaf-to-leaf,to enable easier movement around the plant.if you see that,it`s a lost cause.give up and get cleaning."I" would reccomend moving the grow space,as they seem to be extremely difficult to eradicate,although there are techniques to "limit" the mite activity,if not get rid of them completely.Rule #1-keep everything spotless however sometimes even this is not good enough.
but good luck man,keep us updated.