People spend their whole life studying single nutrient deficiencies and still never understand what a plant is saying which is why soil analysis is used to actually pinpoint weak links.
Ph is such a farce, ignore it unless your growing in water and inert media.
Your plants look hard to revive - you got fans pointing at them or something like way too many nutrients idk but your pretty much killing them and without good health a 600w 90 odd lumens is pushing the far too hard.
If it were oh id expect to see ph damage not limp lame paleness sorry, maybe stop ph'ing andpost a water report we can tell you simply your good there.
Completing ten more grows will help if all else fails as youll soon spot whats off
