Leaf damage pic included

WOndering what you guys think this might be?Heat stress?

Currently this plant is 2 weeks in 12/12

the temps have been around 86 but I lowered it today to max 84. the top of the plants leaves look like this.
growing in roots organic green lite coco (which i dont like)
h&g nutes

did just neem spray 4 days ago

It does look like maybe they could have been affected by the neem, should recover though. You can always spray with straight h2o, to rinse neem and soap. I had some leaves that looked like this and I thought it may have been from touching the leaves with my hands, and rubbing the bottoms to get rid of spiders and eggs.

Might be heat stress, put your hand on top of your plant, if it feels more than warm, it's too hot for the plant.

thats a type of heat stress my widow was doing this at about 84-86 degrees so i moved it to my other grow temps were at 77-79 and she went back to normal even started growing again so try lowering your heat and you'll see a difference. good luck.