Flowering day 36, weird orange bubbling

Hi everyone,
This girl is in fox farm ocean forest with light supplemental feeding every other week. I looked at this under the microscope and couldnt see any pests. Any suggestions as to the cause?

Cheers

Nutrient Burn. See the one leaves? 3 leaves/ 1 leaves is a sign of too much nutrients

Leaves curling is a sign of nutrient burn.

PRO TIP: During the first 3 weeks of flower is when the plant is most sensitive. I cut my nutrients in half or quarter during those 3 weeks and slowly stagger back up after 3 weeks