Hat jemand eventuell eine Idee woher solch zerknit...

I’ve had this happen on some of my plants during the first few weeks. Nothing happened and they all did just fine. I wouldn’t change anything because the plant actually looks pretty healthy. Hope this helps.

Should be fine, let it grow out a bit and then pannic if its still a thing.

If refering to the pictures you have this week for your diary i don't think its too much concern right now. All your levers are pretty good and doing half dose is not a bad idea while still small. If you have some control you could bump the humidity up to 70% and the temp up a degree or two. I notice when my plants are babies they tent to like more of a humid tropical environment, but you are in a near-optimal range.

zuviel licht, zwischen 300-350 ppfd (20-25dli) hast du in dem alter schönere blätter 😃

Hi There- I have had crumpled leaves from light stress and from high stress training or low stress training on some strains.