So this is a problem I've had over the past few grows, some seem to be affected worse than others, others are fine. There is no light leaks in my room which was the first thing I checked, it looks like they're stressed but not sure what from? . Growing in coco under 2x600w, ec1.8 ph5.6, temp 26c, strain ww X bb from seed.
Any ideas??
Any ideas??