its a kinda overnuking in combiantion with abig light...
you can avoid that in staying in an ec of 1200... and always watering properly the ladies
damage is done now, leaves will get crispy .....and looking bad
its importat not to worsen it, keep alow ec and let them flow
it happened like this.... the were fed with solution... the water evaporrated due the light itake// temperatures and the nutrientss remain in the plant but more concentrated...
but you are in final stage of growing, and the plant concentrates in flowers.
and she will go on flowering... and givve you a harvest
j