Starting to get some fan leaves that are turning yellow on on side, and twisting to the same side (there are two pics above). Plants is healthy and growing vigorously otherwise. Any ideas?
Early signs of phosphorus deficiency. Check your runoff ph and ec levels to see where your at and that will tell you what needs done. Not sure what ec and ph your feeding and running but in flower ph should be higher than veg. Ec start lower than what you were feeding veg nutes. Cheers friend