I've got a few pineapple thai and 1 super lemon haze clones and want to take advantage of natural light; they have been under 24/7 to root. How large a florescent will I need?
if going outside, a couple hours extra in the AM and pm for a week should be enough, size of light depends on how big they are. If they are freshly rooted clones then just about any extra light will work, like a porch light.