A customer has a question and I hope we can get some opinions on it, thanks
Thanks for the order. I have a question maybe you can help me with… I was successful with the germination of all 15. But once they sprouted they have been wilting and dying. One was up to 2” tall and just fell over. I did Miracle Grow, LED light, warmth, water twice daily, circulated air & still failed. Any advice? 8 are still green but wilted and starting to give up, anything I can do for them?
Watered twice daily or lightly misted twice daily? When I first started, I killed so many seedlings by overwatering them. Let the medium dry out a bit, then water with a tablespoon, or just mist the top of the soil. Could be your miracle grow, but more likely, your seedlings are damping off.
Also, your light wattage & height?
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If you post pics, people can give better advice. 
Over-watering… 
Only mist soil twice per day with lights on. Try not to mist the lady 
CHANGE THAT SOIL A.S.A.P ! OR YOU’LL LOOSE THEM ALL !
Be very careful when you do. Get your seedling some soil that is very, very low in N P K
FILL NEW POTS WITH THE NEW SOIL MAKE A HOLE AND GET THAT SEEDLING S OUT OF THAT SOIL getting all the soil off of the roots AND PLACE IN THE NEW SOIL.
THEN MIX UP ONE GAL OF WATER MIXING IN TWO CAP FULLS OF NITROGEN PROXIDE AND 2 mL OF LIQUIDE THRIVE AND THEN 2mL OF ROOT STIMULANT MAKE SURE THAT YOU P H YOUR WATER AFTER ADD THAT TO YOUR WATER TO 6.5
THIS WILL HELP YOUR SEEDLINGS FROM GOING INTO SHOCK
WILL P.S SORRY ABOUT THE CAPS WAS TO FAR INTO THIS TO SWITCH…LOL
Did you get Robert’s Growing Guide that is free as a download. If you are new to growing cannabis, it is a great deal of help. Agree with @garrigan62, it sounds like hot soil and too much water. Need to get starter soil and go from there.
Good luck with you grow. Jerry 
There you go with the Nitrogen peroxide, Will hahaha!
Hydrogen peroxide, 3% is what you want.