It has over-fertilization and leaf burn. I don't go over 1000 EC during the growth phase. Then in flowering, I increase it by 100 for the first 3 weeks, and in week 4, the EC is 1450. The maximum I apply is an EC of 1,800 in weeks 7/8. I advise you to let the substrate dry and do one or two water-only waterings. After that, check the EC and pH, 6.2 to 6.5 is good. Cheers and good luck!