So the tip burn is getting worse. I've decided to do a slight flush with the next watering and go for more runoff than usual. I haven't measured EC in a while so I really couldn't tell you if that's what's actually causing it. I would assume so tho. Gonna increase the amount of CalMag I feed even more and switch to a different brand with a better NPK. I will also keep an eye on the ph from now on. AN keeps it in a acceptable range but it's a bit too low for soil. All in all the plant is looking great tho. Good stuff Mephisto