Does she need more light?

Hi bud thanks for the feedback just bmanaged to dial ph back to 6.5 it went mega low and honestly I'm not sure what my light is orr how to check I have put 2 booster lights in too but not overly happy thinking of buying a Mars hydro 1200w as I'm only growing 1 plant in a 600x600x1200 thank you for your feedback

Hi mate, How far along is she? What power of light are you using? How far away from plant to light? Few questions about your setup but i think you're doing a great job from what I see. Look like you have a slight PH issue as I can tell by the brown marks on leaves. A grow space needs a minimum of 25W/square foot. I have a 4 SqFt space and run a 110W light. Just enough for that space. It may take a little longer to harvest but happy with my results. If you haven't got that then i suggest adding some supplemental lighting to boost her growth. I hope this helps, good luck and happy growing