It would need to be a bit more specific..like ppm's/ph of feedings..amount of water and how often..are you using tap or RO? Temps/humidity? Dyna gro? They have many kinds of fertilizers To me it seems a bit under-watered..you have odd looking dry wet spots on top..if it is under-watered, then deficiencies will spring up. You may also have or had excess nitrogen. What light are you using and how far away is it?Feeding this Auto about every week, Dynagro. 3 weeks into flower.