Def looks like heat stress, what kind of light? What are your air temps at canopy level, and what type of air circulation do you have?
75W cree cob. Near 74, often lower. it's kinda chilly.
Have you sprayed anything for bugs? Leaves look a bit munched on, did you have a recent pest issue?
I meant to ask about that. I threw a couple of males out earlier and when I split the stems I saw kinda light brown bugs. Any idea what those could be?
The problem most likely, do you have pictures?
No, I trashed them. They were very, very small. Light brown, maybe an ash color. Seemed to crawl. Maybe like a spec of sand.
Can't really identify just based on description, when asking for plant diagnosis help always include every detail you can provide, helps to eliminate guesses, is look at your current plant with a loupe, check really good under leaves and around veins, good hiding spots, if you have a borer pest I'm lost, never had to deal with those, plenty of others here with more bug battles under their belts than me
My concern is spider mites.
Hmmm. I tossed them but I'll inspect my others. It's very possible! I sprayed a ton of diatomaceous earth in the tent and left the fan on, also neemed. Left it alone for 12 hours and just came back to it. Will update in a few days.