seedling are a bastard to start, it the worst for me, anything and every can happen to seedlings and by the time you notice something is wrong it may be too late.

this is what i do

plant the seeds 1" into the dirt no more no less, water them with about 3-4 oz of water and leave them be a few day, when the dirt is dry water again the same.

when she comes up this is the time to mist, once a day, not real heavy either just enough to cover her leaves.

only water them when they are dry as seedling hate to much water, whren they are 2-3 weeks old then you can use more water as they get stronger and need it.

keep those light a few inches above them until they get bigger then you can drop the lights 1-2" from the very top of the plant.