Seedling looking down for 2 days

Never seen that. They usually straighten out in a couple hours of breaking the surface. Possibly to much fertilizer? Or you have the pot upsidedown 🤣

She's either building roots, or a slow grower. I put my money on building roots. Humidity and temperature are fine. I've noticed that the cultivars I have grow pretty slow above the soil for the first couple weeks. But, when you up-pot them, you see why. The roots on them are insane. Depending on the lab you got your seeds from, they could be doing the same, or the seed may have been dealt a bad genetic hand.

Moderate grower here with some college knowledge. Looks like ur humidity might be a little low. Did u gradually take the humidity dome off or did u just take it off. Personally I gradually take the dome off the day it pops out of the soil but if u don’t have a humidifier in the tent ur going to have to manually most ur plants every hour during the lights on cycle atleast. Also how far is the light from ur plants could be a bit closer maybe that was my other thought. Also what water r u using is it dechlorinated, does it have fluoride . Do u ph the water and if so what r u using to ph the water?