If you could shoot us through a list of your lights that would help a lot
From what I can see your plant is doing alright and although I am a newbie myself I have a few suggestions...
> Get some store bought soil (to me it looks like some back yard soil but i could be wrong)
>Maybe raise your lights - the plant seems to be bonsai-ing itself. this is hard to explain but if the lights are to close the plant will get bushy but not really develop any further.
>DON'T fertilize until 4 week's in - this is mentioned much here but from what I see plants only suffer if nutes etc are given any earlier and they love it any time after around the four week mark.
>I recommend putting it outside preferably on a roof or something of the kind so it can get a full days sunlight and not be moved around to much. Give it sun light and water and nothing else. (maybe if my previous point about soil is right, some new soil could be beneficial but not if this is going to give the baby excessive amount of stress.) Once your baby's are developed roughly 4-5 weeks in move them into your grow box and then start to slowly feed more and more nutes.
>Add more light! If you rule out the factor of heat a plant simply cant have too much light so... Add some side lights to promote outwoods growth (its not all about height) all it'll take is 1-3 CFL'S. Adding side lights can also give you some ability to change up your spectrum by adding some 'warm white' tones.
I noticed your a Newzealander so I've guessed your nights go bellow 5 degrees (C.)?If this is the case either bring them inside with out seeing any light over night or if its not completely necessary to move them indoors then just add some mulch or straw on top of your soil this will help stop roots from freezing over night or getting to cold and will also minimize watering vist's.
Most of all... Stay high, positive and enlightened.
. I am aware of height boost in flowering just seeing if it matters how long I wait. Thanks dude.