Tell us your setup and what strain it is? Keep your lights close as possible and get a small fan blowing in their general direction, but not directly on them, ASAP. I like to just blow the air at the side wall and it usually moves them around plenty. The older they get, the more direct wind you can pump at them. That will develop very strong stalks and roots early.
NOT BASHING you, but you will want to transplant your next step up into some better soil. That doesnt appear to be very loomy (drainable) at all. Soil is like oil in your car, its the lifeblood. Its the difference between weed and some killer weed, LoL.
Good Luck Dude!