ready to transplant seedling to 4" pots - what medium and nutes?

Seedlings have been growing for about a week in rapid rooter plugs. I'm ready to transplant them in 4 inch square pots but not sure if I should use a soil (like ocean forest) or soiless medium. If soiless I would think I should add some diluted nutes. But if soil no nutes.

My concern is I don't wan't to burn the delicate seedlings with too much nutes.

Is ocean forest ok for seedlings?
or
Is there a better nute that I should add to a soiless medium?

FFOF's a little hot for seedlings but it'll easily work. I prefer the Nature's Care organic line, personally. Bare bones and completely organic.

Try FFHF. Or grow in half and half. This is my grow with NC products as of last week.

Thanks. Those plants are looking super healthy.

I can't get Nature's Care around were I live.

So, it I do ocean forest half n half with a soiless seedling mix that might be best?

If organic, use Happy Frog instead of Ocean Forest. Chems, go FFOF.

For starting it, yeah, half seed starter, although HF isn't as hot as PF, I think.

It's one plant, by the way.

I forgot the "s" in my title, it is 72 plants.

oh, nvm, you meant yours is just one, i see.