Browning has started developing at the edges of our plant's leaves. Any insight? Soil grow - FFOF Indoor Strain - Barney's Farm Honey B 8 weeks old About 150 watts of CFL Watering around twice a week, whenever they feel light. Ferts every other watering. Water from tap. Fed a couple days ago, at 1150 ppm. Temps probably lower 80s in the box. 5 gallon pots. Picture of the discoloration up close. Any thoughts as to what could be causing this? Thanks guys.