Ugly mutant lady: Red Kush Auto

DAY 9 This plant is really weird, man. It's growing very quickly, but all the growth is twisted and mutated. The third set of leaves is already growing well, even the calyxes are forming, but the seedling is an ugly girl. Would you leave it as it is and let her do her thing or cull it and start a new seed? Also, should I give her veg nutes on the next watering or wait? Let me know. I think I'll wait for a week or so to see whether she can grow big fan leaves, which is the most important thing. DAY 11 Growing quickly, but still stretching a lot. I moved the plant down 15 cm to make sure that's not light damage that's happening to the leaves. Also, just in case I added a 12W LED light strip on the sides of the tent, I hope the plant will stretch less this way. Will give it its first veg nutes feeding tomorrow and spray it with kelp. DAY 13 I watered it with 750 ml of water PHed to 6.5 with addition of neem, insecticidal soap, veg nutes, and kelp meal. Also sprayed it with kelp. But I'm not really that happy with the growth now, the leaves don't seem to get bigger anymore and some brown spots appeared on some of them. If the seedling doesn't progress or grows out of it within the next few days, I believe I'll need to start a new seed.