What’s up with this plant??

Hi all, this is my first post on this forum and my first grow in general. I have 2 auto white widows from Crop Kings seeds. Growing in a hydro setup. About 2 weeks in or so, and one of my plants seems to be doing pretty well, but my other plant is almost stunted and just growing oddly compared to the other. I’m on very light nutrients about to transition to a stronger dosage, I had trouble with my water and air temps reaching high 80’s but I’m keeping them around 72-80 degrees now. My humidity was around 40% I’ve added a humidifier to raise up to 60%. If anyone could offer ideas as to why one looks the way it does vs the other I would be appreciative. Also I’ve noticed the edges on a few of my leaves were curling up but I figured that was due to my high temps. Thanks! If I left any important information out please let me know.

this looks like heat stress, the leaves curl upwards trying to cool down. whats the ph of your water

Hey thanks for the response, so I’d say I ran like 3 days with a ph of like a 7, but I know that was high, since then it’s been about 4 days of running a 6.0