I am using this soil and perlites mixed in with it.it is slow release
Dunno man, probably hot soil.
Can't need nutrient if there's 3 months worth in there. Can't tell properly, but the slow release fertilizer is "natural" apparently, which is a plus i guess.
How often are they getting water? Again looks pretty dry to me. Some mulch like straw or sugar cane might help retain some moisture. Don't use wood chips. Those plants roots wouldn't be more than 2 or 3 inches down. Might be drying out, the mulch will help there.
Like i said, probably soil is too hot, and maybe underwatered too. But in those large pots, it'll be hard not to overwater too.
They may recover, and grow into the soil. Maybe not.
Bit touch and go.
My advice next time, is to start them in 500 - 1000mL pots or so, even solo cups. But use a seedling mix instead.
Rapid rooters wouldn't be a bad option either.
I'd avoid any soil with pine bark. Didn't do mine any favours.
Best of luck, hope they pull through.