seedlings ready for transplant?

I have 4 big band seedlings, approx 6 days from germ, all about 2" high with roots showing through the rapid rooters they are in. The local store talked me into buying roots organic soil but I've read it may be a bit much for seedlings and sort of wish I got a soiless mix. What do you guys think? I would be transplanting into 1gallon smart pots fwiw. I"m a total noob with this so all help is greatly appreciated.

p.s.
One of the plants has just keeled over to like a 45 degree lean. Looks okay besides that, should I just prop it up?

yer transplant them man they'll be fine have you got a fan on them? cuz if you dont the stem wont strengthen up an your plants will start floppin good luck mate

If the roots are showing, it's time to plant em. The leaner can be planted at a slight angle and gently firm the soil around the stem. Make sure to bury the pellets about 1/2" under soil so they don't wick moisture to the top.

Happy harvests.

you can put a popsicle stick next to the leaning plant and tie it loosely with a string to prop it up.

Thanks guys that was quick... so I'm good to go with the roots organic then?