Leaf edge serrations

What's the deal here. I'm feeling like these leaf edges turning up is from too much nitrogen. but it looks like it could be too much light. But I'm still leaning towards nitrogen

This is bubba Kush in hydroton ebb & flow about 3 weeks into flower. Running megacrop...


The plant in the back with the buds is the bonsai mother plant of bubba kush that's in hydro. They are in the same room under the same light. the mother is obviously a few weeks ahead in the flowering cycle but showing none of the leaf edges stuff

Nothing in your pics would suggest too much N. Do you think you're feeding too much N? Perhaps this particular strain is just a bit adverse to your light vs. your other plants; it happens. Have you tried adjusting your light to a more happy medium for all? What temperatures and humidity are you running?

Temps 60s-70s and humidity has been in 70s. it's the best I can do it was like a hundred percent outside for a min but finally down again.

I guess it could be humidity, didn't really think about that. It has been raining here the last couple days but it's cleared up now

Yeah, I'm not sure really...but, 70 RH, with temps in the 70's is a bit high...be careful it (humidity) doesn't cause you issues as you go along. Sorry I can't give you a finite answer, other than to perhaps tweak your light a little; good luck.