Plant is 3 weeks in flower. Temp 60-70, hum. 50-60 watering pH 6.0, soil pH 6.8-7.0. No nutes for first two weeks of bloom. Just fed her two days ago and noticed most of fan leaves are yellowing pretty bad. Some fan leaves look like canoes with what appears to be necrosis developing but most of the secondary (bud) leaves are still pretty green but am noticing small yellow spots on the emerging leaves. I feed them bio grow and bio bloom. as per instructions. 5 mil grow and 10 mil bloom Can't figure out what problem is driving me crazy. Can someone please help me before I spaz out?? Lack of iron?? I know nitrogen is good. Maybe trace minerals??