Fourth week and everything is growing great. Maybe even too great. :) The plants completely take up the tent and therefore had to be trimmed a little to ensure good air circulation.
Since the flowering has started, I also used the fertilizer for the flowering phase this week. I used 3g per liter of soil as described in the instructions. So 30g per pot.
Humidity worries me a little as I rarely get the air in the box below 50%.
I’m not the right one to tell, as I am myself in my first grow ever, but mine looked very similar in the beginning and developed nicely so far. Good luck with them!