Nice grow, happy growing.
Unfortunately mine also got the yellow tip thing and it got worse for me.... with 2 out of 3 ladies I'm currently trying to get those two under control, otherwise your grow is 1 week older than mine and LTS was a good idea From you, it's my first grow and I didn't dare to go over it because I was afraid of damaging them, and I can say the specified 80cm height has already been exceeded, they are growing and growing ๐