Just transplanted 5 day old seedlings. How do I minimize stress?

I sprouted 12 little guys about 5 days ago and (this could be my imagination) but they seemed to stop growing yesterday. I totally rigged up these take out containers as seedling trays and divided them with cardboard from a brownie mix haha.
Anyways, I decided to put them in 12 oz plastic cups to give them more room for growth.
They're just little babies, maybe 2 sets of leaves, but now that I've transplanted them how can I minimize stress? Should I put them directly under the lights, or put cups over them like humidity domes until they're acclimated to their new environment?
I don't want to lose them just because I was impatient and moved them too early. How can I make sure they survive?
Thanks

You have 75 postsWhat have you been talking about

I put my seedlings in 18 oz solo cups and fluorescent lights 24 hours for 1 week with a fan blowingwatering only when needed

Seedling can handle a lot of stress, put them under the lights with adequate ventilation, if they shy away from the light move them futher away as they are too close or it is too hot. Like ghetto said what have you been doing all this time?lol?

Hopefully you haven't given ferts and not overwatered them, seedlings will stop growing if the soil stays too wet for too long and they do not require ferts just yet! Only small seedlings need humidity and yours don't need cups over them at this stage, maybe when they popped up through the soil but not now. Good luck

Thanks for the feedback Kingrow and Ghettogrower. I'm not sure exactly what you're asking me in relation to my 75 posts, you haven't been keeping tabs on me have you? I spend a lot more time researching and reading then I do posting my mediocre opinions, unless I know exactly what I'm talking about. Also, I'm in a country other than the USA which means I have to be even more careful about who can see my internet history. Big Brother and all that.

About the grow, within 10 minutes of transplanting (during the process I damaged at least 3 of their roots) I put them under two 24 watt CFLS all night. As expected they haven't grown at all but as you said Kingrow, they didn't shy away from the light so maybe they'll bounce back quickly. I did water them pretty heavily before the transplant to ensure I could move the whole block of soil but they're surrounded by fresh dry soil in their new containers so hopefully most of the water will leach into it. They have a fan on them at all times as well.
Also, these little guys are going to be an outdoor grow. They're indoor at night for now until they're strong enough to survive in the wild. I'm assuming that would be at about 3 weeks, 4 nodes and 4 inches or so.

ALSO: I know you're not supposed to give seedlings ferts, but on some of these grow journals, they have massive 3 week old plants with huge fan leaves and like 7-8 nodes already. How do they get theirs to grow so much quicker?

They grow so big due to great soil. right pH and conditions and a sh!t load of light. Takes practice and you don't need some super fertilizer. Good soil and a healthy plant, should notice the growth every day. Too much water, ferts and other problems probably leave yours lagging behind but i am sure you will get there, those big plants have very little deficiency and been grown right with a lot of love and attention. Practice and practice again.

If the seedlings show any change post and get it dealt with. I have grown that many plants it is like second nature, when my plant talks i reply, learn to grow better and then learn to grow better again then you will have monster plants in 3 weeks no problems.

Humic and fulvic acid i believe can speed up growth and nutrient uptake in the seedling stage for an added boost but i am just getting to this part of my research and grow so i can not comment futher yet. Good luck dude.

I never transplant my seedlings till 1-1/2 to 2 weeks. That way they have a good root system started. I also only transplant once. They go right into a 5 gallon bucket. They'll come back. Like kinggrow1 said seedlings can take a lot of stress. Good luck. Buy the way anyone come up with a diy for chilling the reservoir in aeroponics? Can use any input anybody has. Thanks.

Fish tanks use chillers and heaters as well. Diy for an accurate temp reading would have to be some pretty handy work.