AsNoriuanswered grow question 1d ago For soil grows 1800+ is a bit too much. I personally when do such strong mixes for feed, means i underfed her before and thats my temporary fix/boost.
You have nitrogen toxicity, leaves are clawing , easy solution : just back off with feeding, for 2-3 watering cycles , she would be on plain water diet in my garden.
After that break return to 1000-1200 ppms, for not running into same problems : feed/water/feed/water is smart feeding schedule .
Leaves should be ok after some time.