Any time mengle, i hope your seeds are fem seeds, although not very expensive, using co2 for a plant that turns out male and is useless is a huge waste. 24 hr light is a must and a great idea, if you want a short bonsai like mine, wait until you get your first set of fan leafs with 5 leafs, usually the 4th node then top it young. keep to the co2 regimen use as many cfl's as you can cram around it. and keep the grow space small and controlled 4'X4' is perfect size, wrap whatever you are using as a container or box in trash bags and duct tape them air tight with the exception of the in and out vents. and you should do fine, but like i said, if your going to go through the trouble, make sure you have fem seeds or get a fem clone. its a lot of work and effort to throw a plant away if its male.