I want my seed 80-82°f in 100%rh.
Water should be beading on the inside of my ziplocs and complete darkness.. After germ in paper towel.. seed goes into solo cup with dirt that is moistened till it will hold its shape, or watered night before...either way it gets tilled. Seed goes on top then ziploc bag.
Tap water, chlorinated, no nutes..
A layer of dirt is not necessary as long as rh is high and lights are off.
Round leaves showing, are green and extended it gets side light. First set of leaves show, it goes under hps, height just before bleaching occurs or the leaves thicken.
I go from papertowel to cup with longest possible tap, it goes faster than soil earlier. But you dont want the shell to fall and roots to intertwine. Usually within 24hrs i have enough root to plant, maybe another 12....
And transplant into pots before roots compact and spin. This structure will still be there at harvest and messes with watering and nute uptake as well as hormonal responses