Super Lemon Haze

That’s 100% nutrient burn, look at the burnt tips and in one pic the leaf tip is pointing up both are signs of too much nutrients. As mentioned already all mix has enough feed for 2-5 weeks and 2ml per litre A and B is waaaay too much for them. I don’t see a EC level mentioned in the diary but a plant that size I would be around 1.3-1.4EC, if you don’t have a EC meter cut the nutrients in half and observe, if the plant starts to go a lighter green then you like rise the strength back up in increments until you find the sweet spot. I tend to rise the strength of my feed until I see a slight tip burn/sign of over feeding and then back off a touch, that way I know I am giving them the optimum. Happy growing buddy👍

Don't focus on the bottom leaves. You had a problem, you over fed, you flushed. Correct procedure. But how does the new growth look? Is it healthy, is it fast? Pick of the lower damaged leaves and discard them. Lay off the nutes especially as you're using a well fed soil with microbes in, what you really want for that soil is organic nutes and molasses - these will help feed your microbes, advanced nutrient line wont do that and will just overload your soil with nutes the plants can't handle. Good luck moving on, message me if you want 🌱👍