HeY Check ThiS ouT!!!!.....HelP!?

My plants have just recently started doing this. Any suggestions????? Its not on all my plants and leaves. just mostly on the left side of my grow. i dont have pests. checked and checked. maybe wind or light issue??? i dunno.. Let Me know if you have any clues plz.

This is what im working with:
1000 watt hps w/250cfm exhaust.
6 purple haze plants 3 weeks old.
temps....n/69 d/76-80 degrees.
nutes fox farm big bloom and tiger bloom....nothin new here

Wow 40 Views And Nothin To Say????? What Is The World Comin To?

Wish I could help. No bugs on the leaf?

Nope. I wish. Then i would know why this is happening. But no bugs.

Looks like bugs spidermites are pretty small dude you checking under the leafs that's all I could think of tiny small micro specs same shit happen to me didn't know then I got some spitacide