Curling

Hey Growmie ... There are a few things that could be causing the leaves to "claw" or curl upward. We can eliminate heat stress since your temp is 74 F, so the next things to consider would be either overwatering or the temperature being too low in your grow space. I personally like to keep the temp between 78 - 81 F so the temp fits several strains. Also, make sure you're letting the plant dry out before watering it again, let it get to the point where the pot is light when you pick it up, then water again, to prevent overwatering. Hopefully, this was helpful and remember ..."Happy Growing" and "Free your mind one puff at a time" Mr_Weeds_Autos