Right now you dont need ANY fertilizer!! NONE!! Those lil round leaves have a store of nutes already in them. Miracle grow will only get you so far untill your babies will start asking for micronutrients. See if you can find some fish emulsion, and some blood meal. you dont need it yet though.......wait till those lil round leaves start lookin funny, then use 1/4 strength nute/fert. Most stores, even the Depot carry theese. Go online to search for some GOOD soil ferts. Your two lights are ok for a couple more days, then yer gonna see some stem stretching. YOu need some more light! Lots of it if youre gonna go w/cfl's. Welcome to the hobby, start doing some Lumen output research, you'll learn pretty quick, and so will your wallet!! LOL. Good luck and may your crops be blessed!