Hi @LED_Seedz ! Thanks a lot for advice! I will try to answer on all of your points
A: 2 weeks ago a watered the plants with pH 5.7 and they all curled down. We thoth that it was caused by too low pH so next water was 6.2 and they were aboslutly fine. I am bit scared now to give them lower pH than 6.0 Do you think that I should lower my reservoiar to 5.7??
B: Czech republic. This time of the year humidity about 60%. So you think I dont have to use humidifier? Or I shoudnt mist them with water? Or I shouldnt do any of those things except nutrition spraying two times a week? ??
C: OK. Next round I will start with regular seeds (no autos) in smaller containers for vegging phase and after 3-4 weeks I will transplate them in to the 1 galon pots I use now for flowering phase? Is it ok to use rockwool cubes instead of containers? Or better to have containers with coco and transplant in to coco?
D: Yeah the corc seems to be problem the whole time Last time I had pure coco with nothing else in it and Everythign was just fine…
What about the Epson salt? I never heard about this. So you say that everytime I start pressed coco fiber I should use clean water with that EPSON SALT?
My meters are calibrated and measure well. My resevoiar is pH 6.0 and ppm 560-700 (Ec 0.8-1.0)
But the most strange thing is that the plants are 60 days old and they are still not flowering. Not even one is showing any gender at all…
I flushed all of them 6 days ago with 30l of RO water ph 6.0 with a bit of Calcium (Ec 200 ppm 140) and the runoff was Ec 1420 pH 6.7-6.8 (ppm 990)