Im not too concerned as this condition is only on a couple of the leaves. Newest leaves seem fine. Just wondering what those pale green areas are caused by.
i had this problem recently- blistered leaves and pale new growth and corrected it(although a couple never came back). Its def caused from the ph not being on 6.5 and prob too high causing cal/mag and other def. Flush with 6.5 water , check runoff, water and water/nutes. In the meantime try a very diluted foliar feed with MGrow. Correct it soon bro or they will die or be severly stunted.