Robertsanswered grow question 7 months ago Feeding way too much nitrogen in flowering. Dark green, Shiney leaves is nitrogen toxicity and hinders bud growth. The flowering npk ratio is 1-2-3. It is nute burn. The brown tips when they start to curl up and in is nute burn. Plus, the excess nitrogen is another clue. In coco it is always suppose to be wet. It is Hydro in a potter. Also run off ph is important. Coco is high irrigation. You can not over water unless you let the potter sit in run off. I almost bet your run off ph is really low. 6.1 to 6.2 is where it should be at this stage. With a healthy diet of potassium and phosphorus with very light nitrogen. I would flush it and get ph readings. Continue to flush till run off ph is right. Then add fresh feed to replenish the coco at the right ph. Let it drain good and return it to grow area.