hey there, I know you didnt ask about this : i see you have some magnesium deficiency coming on, probably from having too high a pH and your intense light schedule , you should start using cal mag immediately , keep the plants in veg and reduce their light cycle to a still intense 18/6 or lower. Yes, you absolutely need cal mag in soil, as you can see. Your pH in should be 6.0 and your pH out should be 6.5, that's because the bacterial life "buffers" the in soil pH for you. Consider adding humic acid to your line up somehow, or check if what you're putting into it has some inside. When reducing your input pH lower it to 6.0 over several watering aka 6.8, 6.5, 6.2, 6.0 , with if you add humic acid you dont need to pH down. Hope this helps !
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