Well lets get some questions answered.

First, Was the plant in that pot when you got it? And What size is the pot?

My best guess is it's been in that pot just under two weeks. So, next question would be how large a root ball, or how many roots did it have? (if you just got a rooted clone)

I see slightly browned leaf tips. So you might have over nuted a little too (just a guess). If this continues you might lighten the nutes, and use plain water the next watering.

You could also be over heating it. What are lights on temps like?

Next, what temp bulb are you using? I'm guessing CFL. However what K rating? Like 2300K, 5000K...(usually on the ceramic part of a CFL)

Lastly, how dry do you let the soil get before you water?

It's also plausible the plant is stressed in some way. It may improve with time. MANY people say to do what nature would do. Because it IS a weed.

Think about this. If a deer stepped on a wild hemp plant. Do think the plant would die? Probably not.

You might find these links useful too. First shows pics of damaged leaves and why. Second is how to Bonsai. It's not really what your doing but shows how much abuse a plant can take. For many years.

Marijuana Plant Abuse

mums