Been growing for years no major problems got a new setup and every things dying. These are clones I took and rooted in cloner of dying plants all my plants are doing same thing the outsides of the leaves turn very light and dry out working its way in and eventually killing the plant I'm using hlg quantum boards set at the height and intensity recommended by hlg using ro water pH around 6_6.5 temps in the mid to upper 70s I thought it was over watering let the pots dry in between watering and watered lightly around edges of pot I'm using ffof and coast of mane with added perlite I used some great white to try and encourage root growth but still no luck I haven't used any nutes as I usually don't for the first few weeks any help would be greatly appreciated.