Hi.
All of my plants (mothers, clones) are showing almost the same sign of damage.
The plants are in different soils (coco/peat/dirt/cow manure/fishmeal, dirt/cow manure/peat, coco/peat/dirt/perlite, coco/perlite/cow manure/fishmeal/bone meal/peat, coco/perlite). I have flushed them thrice in 2...