First time grower

I'll try not to bash miracle grow. Some people have had good success with it. Does the miracle grow soil you got have the slow release stuff in it? It it does, I would just give it water until they get more developed. You don't want to risk burning them up. Young plants/seedlings/clones like that, don't need much Nitrogen at all at such early growth stage. Water when the soil 1-2 knuckles deep feels dry. Every 2-3 days maybe? Don't over water, but don't let them completely dry out. Also ensure water drains nice and well. You don't want to deal with root rot.

 

Oh, absolutely. Trust me. It's better to experience any issues/mistakes/fuck ups when you're first starting out. And I'm not saying your fucking up..no way. Leaf color looks ok, nothing too weird that I can tell (I'm not super experienced like folks who have been doing this for 20-30+ years I started to get into growing around 2011..I tried it once in 2005 and I failed). And I remembered those failures and applied the knowledge gained when I tried again. It WILL make you into a better grower. And ALWAYS ask questions. Always be open to listen to others opinions. Do your research, and act upon that. You'll be fine. While possibly unnecessary, you could do a quick PH check just to confirm your PH is 6-7 for piece of mind. Don't use tap water, or if you do, let it sit overnight so the chlorine evaporates out of the water. If well water, you're fine (assuming PH is ok, etc.) Keep it simple. Esp. on a first grow.
They call it 'weed' for a reason, because it should grow like one. But try not to over-complicate it.Make sure they have good ventilation too. And not too hot.

As far as young seedling/clones go for soil, I have always liked Black Gold. It's a very gentle, nursery soil, has just a little bit of Nitrogen, and hardly anything else. Perfect for the little ones. Once they get bigger, and ready to transplant, use the miracle grow, and/or Foxfarm (ocean forest or happy frog)..or mix that in with the miracle grow...or not...if you use the miracle grow, just be careful not to overfeed them. The time release will start to released into the soil after <check the bag..I forgot how long> in X days. Will say feeds for x days. So after X days, supplement with fertilizer at that point. Watch the leaves for any burning, if they do, back off some of the fertilizer. Trial and error. You will get a feel for it.

* 90 days. Me personally, I don't like that. If it was 30 days, I would be more comfortable sticking with the miracle grow, and just start adding nutes after then. But since it goes for 90, you just gotta be careful, that whatever you add on top of what already in the soil slowly being time released, it's not too much the plant can't handle it. I would go ahead and grow them out bigger until ready to transplant, but I would feel safer using a different soil (foxfarm, roots organics, etc.) once that time came.

 

just let the seedlings it should tell you how long the slow release nutes in the MG lasts for just water around the seedlings for the time be ,,but you have got to transplant the seedlings now ..when you do trans plant bury the stem of the seedling about half way up the stem thats out of the soil .....also add 30% perlite to the soil for drainage ,,when watering dont water by the stems water away from it ,,them dont feed for the three months it the add nutes start ti run out ,,only feed then if they show a deficiency ,,you can grow in MG soils but its harder to control the feeding ,,best of luck if you carry on using MG soil ,,,mac,

 

There is still time. You have four seedlings to a cup.
Separate them, now, one to a pot.
Use a bag of Fox Farm Ocean Forest and start off ‘right’.
Pro-Mix BX will do just fine.
Make GREAT drainage.
I’ve heard too many bad stories of Miracle- Grow soil.
I have successfully used Miracle-Gro fertilizer...
but heard lots of horrors of burnt plants concerning their soil and reefer.
You might try the Fox Farm trio of fertilizers for soil.
G’luck and have fun!

 

Like tooslow said, separate them asap. Never grow more than one plant in one container.

 

One time, at bandcamp, my landlord had potted a bunch of pot plants for me. And he had doubled/tripled them up in a couple pots. This was years ago. He/we thought had gotten rid of all the males. There was 1 male left that we missed (it was tiny and it hid inside the foliage of the female plant planted and wrapped around the main stem of the female plant, so if anything it just looked like a lower branch or something i.e. part of the female plant) because they were doubled up, and I never saw it. But my whole garden, and the garden next door all got pollinated. Lesson Learned.