White spots. PLEASE HELP!

miljo57

Member
soil grow. 8 weeks veg. Big Grow is only nut sofar. P.H 6.8. 18/6. Seems like only one plant. Female from what I can tell by pre-flowers. Small white spots but I just looked through a 30x loop and saw what looked like a chrystal and itbrushed off the leaf. I dont see any sign of spider mites under the leafs. Any input?
 
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