600 to hot for her ??

Well all was awesome got a half pound

double checked -- pomix so you are soilless.. def fertilize every irrigation with 10% runoff with 600ish ppm (assuming this is 1.2EC, some pens convert on different scale). promix comes with aobut a 1EC charge, so as long as you do the runoff, it'll quickly shift to your regular feeding concentration.

i feed 650-700 from 2nd week until end :P it'll be fine. ratio and pH being equally important to concentration, of course. 600-650 will probably do well for autos... always good to test boundaries of your environmental variables and unique genetics growing. slow and small adjustments make for easy reversions at first sign of trouble. take notes.. you'll find a lot of it doesn't vary a whole lot plant to plant. Usually N is the only thing i ihave to tailor for different stages of life or genetics. what ppm levels cause tox early for p and k (S/Ca/Mg too) causes it late for me too... N is a different animal.

I'd check ppm of run off after next feed in meantime keep look out for dificiantcys each strains different I've run autos at 600ppm before or above at that stage but in dwc

This is almost 5 weeks old? Looks a lot younger, tbh and should either be in pre-flower or approaching it ... but at 5 weeks, you'd want the ppm between 500 and 600 ... I rarely take any of my autos over 600 and they only get there when they're in flower... But I'm not seeing anything wrong with your ladies... just be careful! With autos, less is more. Good luck...