Huh well humidity could be OK it may be the soils formulation. There are many soils out there but that doesn’t mean they are made to work with cannibus. Let me get some opinions. @Bulldognuts@Enlightened420@Covertgrower@Zee
She looks really wet. I would stop adding any water for 3 to 4 days, don’t dome, make sure you have a small fan blowing in your tent, blowing just above the top leaves.
Bring that light down a few inches. It sounds like you have a purple, I kept mine 20" from the top of plant.
I’d even challenge to bring the RH down for the few days too.
Need to know about soil. If it buffered and amended for cannabis. As far as humidity, Ideally you would want it to be 70% rh or above. Your seedlings are far enough along that I don’t think rh is the issue. They are turning yellow. New growth is green. Let us know if about soil. Tell us whatever you know about it