Unsure why clones leaves are yellowing and wilting

[Groundhogday]

Hello, this is my 2nd grow. I have 3 clones. My setup is a 100Watt MH light in a 2x2 area. Im using clay pots with miracle grow soil witch worked fine on my last grow. Im using the same bottled spring water for watering. I have used recently some super thrive, however I am not to sure if this is nutrients burn. I really dont think this is a PH problem because I'm using the same bottled water for the last grow. My last grow was outside, so this is a new MH Light. Please let me know your thoughts on how to solve this problem.
Thank you
[attachment=o278772][attachment=o278773]

[CanGroIt]

What is the pH of ingoing water??? What is your soil pH??? What nutes are you using???

Looks like it could be a deficiency....but I'm just guessing....

Filling out the troubleshooting form, link in my sig, would help us help you....

Light could also be closer, looks like....

CGI::::::

[DMC1878]

agree with GroIT looks like nut burn. are the clones from ur first grow? if not then they could be reacting badly to the soil, if they are from first grow then it could be the soil. It looks like the plant is getting more nut's from the soil than it needs and by adding more is only making things worse. How many weeks is miracle grow soil pre-treated with nut's for I have seen soil out there that has been pre-treated with up to 6 weeks nut's which is pointless because we want to use our very expensive products like veg and flower nut's from our local hydro stores or am I wasting my money :). I would give her just water for a week or so, look for new green shouts starting to appear and u should be all clear remember the leaves that are damaged will always stay like that and never get better which is why we look to new growth for signs of good health or problems.