im a noob who has read the manual and needs some guidance

i have 5 plants each a day behind each other this way if i mess up i can pick up where i left off 2 sprouted but 1 sprouted yellow what should i do? other is more than an inch high : )

what kind of light do you have them under? what kind of water you using? Hows the temp where they grow? What kind of soil using?

temp is between 75-80 im using tap water at the moment . i bought some soil to use from a gardening store. and i dunno what kinda of bulb it is exactly but its a flourescent . (cant spell)