Fresh plants drying out?

Alright a few of my plants seem to be drying up and yellowing. Ph is 7.0 temp 68-75. humidity 40-55%. No nutrients added yet. Roots organic soil. 4ft shoplight with 2 bulbs about 4 inches. Getting dimmable ballast for my 600 tomorrow. So someone help me out.

Are you sure the soil doesnt have nutrients? I had a problem like this and it was because the nutrients were burning the young plant. I bought special soil for growing potted young plants and the two plants recovered. I would look into that but god luck

Looks like a lil nute burn to me. If you have an aquarium pump and airstone you could make an ACCT tea to regulate any excess nutes in your soil. Or you could flush with some distilled if it gets worse. I never feed until the small round leaves fall off or she looks like she needs something. I try to keep my soil nutes broken down and I still get a lil nute burn. I make a good ACCT tea and that usually does the job in keeping the nute burn in check.

They were never really good clones. Make sure the mother plant is healthier and improve you cloning technique.

I would say reposition that temp gauge at plant height under your light, plants curling like that on the margins are trying to 'cool' off, and it worked too, they are still alive ...lol
you need to have a small pc type fan in there, and readup how plants breathe
early nute burn, but miss a week or two, of nute they should recover fine, continue with the watering tho

Could be root rot. I'd try growing in something else, like peat and perlite. Some airflow is good to have as well.