Oh ive had lots of experience with spider mites and Fungus Gnats unfortunately, but it's added to my experience. I don't think it's leaf miners because they don't leave a trail. Thrips and catapilers are my only thought. If you look close, you can see a silky web trail.looks like something small like an army of them
Thrips don`t do it like that
Stink bugs ?
It`s not leaf miners
Maybe Fungus gnats or moths or something ?
And the little black dots is their Poo poo!Looks like a slug or a snail, you can see the slime tracks on one of the leaves.
http://www.ilovegrowingmarijuana.com/marijuana-pests-snails-slugs/