young plant - leaf curling downwards

diagnosis pls anyone?

You may have to much heat on them. If the lite can heat up your hand the same rule applies to the plants. Here is a helpful link. https://www.rollitup.org/marijuana-plant-problems/157345-have-plant-problem-check-here.html

thanks man thought that might be it gonna try to raise the light or let em cool down for a bit cause theyre on 24/0

upon further inspection its not hot at all at their level so not sure if thats the cause we'll still try cooling em off tho

I'd just watch it. As it stands now (and assuming this is the only place doing that), I wouldn't be concerned about it. However if it looks like other leaves are doing the same thing, I'd start looking at PH, and micro nutes. As I said though, that by itself isn't something I'd be concerned about.

theres another plant same strain same age thats showing the same signs, not as severe but still there, think it could be ph?

Well if you have not been on top of the ph it could be the beginning of a horrible problem. I would check that.

Some strains of sativa (indicas as well but more often sativas) are high maintenance plants. By the look of the leave I see its a sativa indica hybrid.