i was wondering the same thing, how much does a plant less then a month need? how much for more then one month? lady, id just put them in a window till thay grow there pre leves, then under the light box, makeshure you have a fan, just have the light on alll day when the sun is out, turn them off 1 hour after the sun goes down.thats what i did and i got 2 week old plants that mesure up to 5 inches allready, verry flemsy how can i toughen them up?come on..... someone is looking at this lol someone please reply!!!