Help please leaves look sick!!!!!!

is 1 sunlite 42w 120v Fluorescent lightbulb enough light for my 3 plants they are all about 4 weeks old i bought them about 3 days ago i had them in light on 24 hours a day 12in above plants till an hour ago i turned them off because my leaves are turning yellow and crispy im worried that the will die any tips or advise please!!! has to be someone out there

pix would help. you need more light for that many plants. soil? size of pot? have you watered them? do they need to be watered?

i got them in 7in pots and im using mg moisture control potting mix and yes i water them the soil is nice and moist ph level 6.5 temp 80 day 77 night.....i tried uploading pix but for some reason its not working

could be the soil,ive tried that soil before and it burnt the plants pretty bad,idk about ur attempt.but thats what i think it might be

what do you recommend for me to do???