fan leaf problem

ZZZzzz123

Active Member
plant is in the 2nd or 3rd week of flowering and doing nicely. I noticed 2 or 3 fan leaves are turning brown not from the tips or edges, but along the leaf margin. It looks like brown tiger stripes emminating from the leaf margin. I checked the nute deficiency site with pictures, but it didnt appear to look like any on there. Any help would be appreciated before she dies :\
 
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