hi im pretty new this forum thingy... any help reguarding why my plant leaves are going dry just noticed yestaday that some of them have dry leaves on the top of the plant.. i managed to cut them out and had nothing today come back on them... just wondering all my conditions are spot on aswell.. all levels correct... temp is sitting at 26... and have excellent airflow.. been growing for some yrs now and never had this i would only say its about 15 leaves ive cut off....thanks very much in advance if anyone can help me out....im 3 weeks into flower now aswell...2 600w lights and 2 nft systems...