Strange leaf problems

[BostonFisher]

Hi hoping for some help. I grow under an led using soil and coco coir mix. My leaves just started dying at the edges. Any thoughts? Ph was a bit high so I'm lowering it. I gave some nutes via water compost emulsion a few weeks ago. Sister plant is fine. It's a blue Himalaya. Thanks!

 

[Sprayo1e]

I would try and take pics without the led on so we can get a better look.

 

[BostonFisher]

Makes sense thanks for the tip

 

[Sprayo1e]

I would bet the high ph. Wait it out a few days to see if correcting the ph helped it. Im new to growing so hopefully somebody else chimes in soon.