Slow/stunted seedling, why?

Hi Jizzlw Nothing to worry about buddy. Sometimes they have a slightly slower start to life from each other. Probably it struggled bit to open the seed and this has made it slow starter. Curly leaves happening often but plants turning beautiful out at the end. I use BioBizz soil to but with 6 PH When not adding nutes. When adding nute I go 5.6 and it goes up to 6. Hope this helps and good luck with your growth. Happy Growing