Bottom dying leaves

I just transplanted and put them under a new light. I havnt gave it nutes in 2 weeks. I don't think it's been underwatered.

Hi mate, she is a little stressed and sad. Looks like nute burn on the bottom leaves and possibly over watered with fluctuating PH. I'd give her just fresh water around 6.2 PH. Allow the soil to completely dry out before watering again. She is is hardy plant and lessons learned are fat buds gained. Good luck and happy growing

Looks like some kind of root problem to me. or maybe underwatering ? strange kind of brown just completely dying. from the tips inward. Give her a good water I cant see her needing anymore feed she's not that large I would advise feeding her a small dose of cal mag and nitrogen like your veg feed. maybe that's what they are lacking but I get similar symptoms to this when my roots arnt getting enough oxygen. Though I grow dwc. Maybe another grower can give a better answer :)