I’m using the HLG 650. It recommends a distance of 48 inches for veg. I have it at 50 inches. It was showing from when the seed popped in propagation dome but has been getting better. Does is look like the light is harming it?what light are you using?
make sure its not too close
Will definitely keep you posted!Give it some time she just popped let her grow, it just could be part of the seeds shell stuck to it.
I always say it's like a Watched Pot Never Boils A watched Plant always has an issue. let her be she will be fine.
Good Luck Keep us posted.
Bear420