Thank you all for your huge help, thinking with me. Plants are two weeks old in bigger pots, before that they were cuttings in rock wool.
Back to the case, we can say pretty sure it was underwatering (they did not like watering every two days, so did go back to everyday) and also underfeeding nutrients. Today all looked recovered some, change to better compared yesterday.
Today i watered 1ml a+b and rhizo 0.66ml / 1Liter as suggested above. That was good careful dosage i think. Also did the weight testing today and pots seemed to be lighter, some more, some less. Run off water did not appear right away, which is doot thing too i guess?
Except one plant i gave 1.3ml and rhizo 1ml / 1L solution. She has been the most forgiving for my learning, so i desided to test on her.
I would respectfully debate the perlite thing. I put it because of the green on the surface. And it seemed to help with hand watering a bit. I think there will be enough air, because isnt perlite breathable? And they are in coco and airpots, shouldnt there be plenty of air?
This photo is from today before watering.