Transplanting Warzone (it's all bout da soil)

HHey RIU! So I'm back at fucking up again! I started my seeds, without any thought, and put them in miracle grow soil. Out of fear I let em get there true leaves on and then stuck them in miracle grow seed starter soil.
My end result at ten days are plants starting to show lack of nitrogen, my leaves are cupped downward, and noticing purple in the stems to the leaves. If u have yet to recognize my noon status, I have yet to determine what my problems are and how to fix them.
And please note these plants are all different strains (bag seed) based on leaves I assume indica dominant. The plants all stand about 5 inches tall and working on ttheir 2nd/3rd set of leaves. The roots in dirt are also moving along at good speed.
My Roots Organic Soil came in yesterday.

Questions:
1. Will transplanting to new soil fix my problems?
2. If not, what do I do?
3. What nutrients do you feel best mix well with roots soil?

Any comments are helpful and much appreciated. Will pass rep+ to all beneficial information ontopic or not lol

I would wait to transplant them until they are ready for a new container. they might be drooping and what not because of the strong nutrients in the mg soil but also because they keep getting moved from soil to seed starter soil so quickly. I would just water with plain water and let them get stable. Roots can be used with any nutrients...great soil!! did you get the organic or 707? good luck!

If you're going to use MG, use their "Organic Growers Choice"; it's good stuff. You will need to supplement it with a healthy dose of N, which can be fish emulsion, worm poop or batman guano.

Hot damn! I jus transplanted and came and saw your post cacamal! U r so right, idk why I .never ught of that. But in my defense the footballs were all ready for transplants. I had a set plan of transplanting a few times before their final destination to let the root ball get dense then let em explode in some 5 gals during flowering. But I jus never thought about transplant shock.
I got the organic, I didn't see the use for extra nitrogen in the 707. If im wrong please let me know. And im planning using Humboldt nutrients organic line and foliar formula (from their foliar feeding schedule, cut in half). +rep! Thanks man!

The quick and simple way to know if they need more N is if the leaves are not *real* green, and I mean dark green. Most N deficiency hits when they get 1-2 feet tall and the new growth is green but the older leaves start turning yellow or pale green; that is the plants telling you they need more Nitrogen. Your plants will tell you what they need / like / don't like if you learn to read them.