you may switch your light-period for flowering now, (12/12), unless you want it to get larger ... it may double or, even triple, in height during flowering ... your pics illustrate the 'alternating branches', that indicate plant maturity, really well ... see how they started growing, not directly across from each other ?...that means the plant is an adult, and able to commence flowering ... you do need a lot more light ... try to find 'warm' lights (GE calls theirs 'kitchen & bath' bulbs) ... it could just be your camera, or lighting, but, if they are as pale, as they appear, they need a bit more feeding ... don't overdo it ... use 1/2 strength fertilizers, only once per week, until you see how they react ... I like a nice deep green leaf, with just the slightest hint of a browned tip, that's maximum feeding level, for me ... since you're soon going into flowering, your nutes will have only a small amount of nitrogen (which is responsible for 'greening up' the plant), so it may be awhile, before it catches up, if at all ... good luck, your first attempt is a lot more successful, than most ... :thumbsup: