Jacks Cookies by Voo

I feel like they are stretching just a bit!. I'd probably lower my lights down to just about 30 inches from the top of your plant. I saw your lights are dimmable so I'd dim them to use about 240w instead of it's full 500. save you some power and the girl will love it anyway! That is what I started my girls on with my first grow, Check it out if you want! Cheers and happy growing!

That looks like the beginning stage of magnesium or potassium deficiency . A light green or yellow coloring will begin to show on the veins and edges of the lower & older leaves – this is one of the classic signs of cannabis magnesium deficiency. You may also see red stems. Hope that helps good luck to you and your grow