DWCHCanswered grow question 5 years ago I wouldn't worry much about the fan leaves at this point in the game.. especially the lower ones,. At some point they will begin to shed older leaves, usually necrosing before falling off.. I believe that they're recycling nutes and sending them to bud sites as well as opening up light and air.. I've seen trees do this lots as well.. once my plants have set flower and begin bulking up, I progressively begin deleafing fans from the bottom up always avoiding the ends of tops and lateral tops.. pH seems fine, no signs of issues in the newest growth.,. Looks great...cheers