New leaves curled up

Going to disagree with my growmie here... I don't see ANY sign of a nitrogen deficiency and if I did, I certainly wouldn't recommend cutting the feed in half... I think what he meant to say was a nitrogen TOXICITY - but I don't see that either... but it well indeed might be starting. Autoflowers, generally, do not need nutes for the first couple of weeks of life however they are now at the point where you don't want to deprive them of food. There are two things I see that worry me a bit ... for one, I think you're overwatering just a bit here. You need to let the medium dry out completely before you give them anything else... pick up the pot when you think they need something and see how lightweight it is... if it's super light, go ahead... if not, wait. I think this is what is happening to your leaves... just getting too much water/nutes and it may be affecting their roots (which would affect the leaves). Secondly (and not related at all), you've got them in awfully small pots so at some point you're going to have to transplant them - and autoflowers really don't LIKE to have their roots messed about with as they can be when transplanting... so my advice to you on THIS point is to do it as early as you can and as gently as you can... next time, germinate them in the size pot they're going to spend their entire lives in! Good luck and enjoy the journey!