Need help

I don't see it has an overdose of Ca or Mg https://420life.com/wp-content/uploads/2021/10/Marijuana-Leaf-Deficiency-Chart-scaled.jpg On this lead chart it helps identify the issue. To me it looks like it needs Mg and Ca with maybe a bit to much P? but outside of nutrients I also think you need to work on your lighting and watering setup. If these plants are from any of your open fastbuds diaries I would link them to the question. Lighting, your light recommends a hang height of 24-30" at 18/6, but your light right now is doing 20/4 at 20" so it might be getting to much light. Watering, it looks like in your diary you are not watering the entire volume of the pots just around the plant, and your using crystalized concentrated mineral feeds. when feeding this way you want to get some runoff with every feed to help prevent buildup in the soil. plus FF feeds heavy, Also when feeding this type of nutrient in soil grows I find its best to do a feed water feed water alternation as soil holds onto a lot more feed then soilless. Feed, using cultivation nation is a two part feeding program mostly with a bit of CaMg addon. From what I can find online it has a good amount of NPK and some S and Mg with no Ca thus the CaMg addon and some micros tossed into the mix. Your useing the bloom nutrient in the diary but plants are not yet in bloom yet. I would keep giving CaMg and Veg till the stretch is over then transition over to bloom or mix em 50/50, Mix the two sepretly in water then add into the main bucket to prevent any fallout/lockout of the nutrients mixing. https://foxfarm.com/feeding-schedules/ with soil and using nutrients that are 100% available your PH can drift up a bit and I find helps the plants. 6.2 is lower end of spectrum. I'd aim for 6.5-6.8