i need help with my plants im new to this Its leaves are strange and I don't know if it is normal

Looking like a little burn from the feed on the smaller plant. How close are your lights. One plant can be more sensitive than the other. Seedlings are pretty sensitive to changes, could be VPD, and it might be your PH. Always make sure your PH is correct, don’t assume. If it is not right, you’re guessing at what is wrong.

Hi, I think I notice you using Coco Coir correct? If so it seems to be a little overwatering problem let the soul dry a knuckle deep and then water again, make sure that your coco was also washed true properly and ensure you have tools like a ph pen ph up and down liquid and most importantly Cal-Mag You see.. the exchange in coco coir when it comes co calcium and magnesium is pretty bad if you would like me to help you more feel free to send me a text. Happy Growing! Hope I was correct!

Hard to say without more info about the medium and watering frequency and volume. My guess is slight nute burn (which can make young plants twist and turn) and/or watering too frequently.

It wont be your ph.I used ph perfect for 10yrs and never had an issue.I wouldn't worry too much as seedlings are super sensitive.Make sure your soil is drying between feeds.Depending on temps it may only need feeding once a week at the min.For the most part they're really strong and will grow through serious stress and strains.Iv chopped and dumped plants on compost piles for them to grow out the side of the pile.

Ph swing and no oxygen from overwatering ( aka keeping soil constantly moist ) Without more info noone will tell, but if its soil - my scenario is most likely.

no diary, guessing the feed was a bit to strong for them.