Robertsanswered grow question 3 years ago Your plant that is more advanced is showing early signs of potassium deficiency. She is in heavy flower and very hungry. Now your nitrogen levels are very high. Dark green and Shiney almost leathery leaves is indication of this. Would reduce your nitrogen level by half and increase potassium and phosphorus. The leaves won't repair themselves, but you will be back on track. Good luck, and happy growing 🌱