Hey buddy. Hope you don't mind me chipping in!
I'm fairly sure your nutes are too high on some of the ladies. The tips of the leaves are starting to turn yellow. I see you were having some issues with high PH. I usually find I have the opposite probablem hehe. I've found a good schedule with your feed is very important.
I hope non of this is redundant or insulting I'm just trying to help I promise
I run my bucket/tank from tap. I live to sit with air puck in for 24 hours BEFORE adding any nutrients. This allows the Chlorine in the water to evaporate to a tolerable level. After 24 hours I will then make my mix. I use A and B which need to be added to the tank and allowed to mix for 24 hours before feeding. So after making my feed I will mix thoroughly I add a 2min timer to my watch and stir constantly for 2 mins using a stainless steel giant spoon with holes. (Dunno what it's for haha) I do this after adding each nutrient making sure each is diluted before I add the next.
I then take a PH reading. Due to my PH always being too low I usually add a miniscule amount of silicone to increase my PH while helping create strong stems I add this first as silicone is hard to mix and can be stopped by other elements. (0.1ml per litre. 3ml for 30 litre tank) if I'm adding cal mag pro then I will add this first but after the silicone.
Calmag lowers PH so could be a good thing if you are struggling with high PH. You don't need alot 0.5ml-1ml per litre.
I highly recommend until you are aware of what each element does and what each of your nutrients contains it is best to follow the recommended feed schedule. Any reputable feed schedule will work and tweaks are really only recommended for people who are really sure what they are doing. I've been growing for over 10 years and only now do I feel confident to try very small tweaks, based on a limited knowledge. Mainly because I'm a bit more capable to see when they are receiving too much or not enough of a certain nutrient. And even now I have to ask Shed or Jon haha.
Hope this wasn't completely useless hehe