clone problem identifacation?

ok,
i got a sexy clone that has a issue i need identified,

red stem on top half of plant, leafs curling down (like there drooping, but not) leafs loosing clorophyl and leaf tips turning brown

it was growing in shit soil in a pepsi can under 1 13 watt cfl for 2 months, now it's transplanted in a milk carton under 4 48 inch 6500k floros and 3 26 watt cfl's (2 2700k and 1 6500k)

transplanted 3 days ago

can someone tell me whats wrong and give me a quick fix using stuff around my house?

Wow, could be a lot of different issues...any chance for a pic?
I'm assuming were talking about a rooted clone, yes?

The leaf curl could be over watering.
The red stem is likely a nutrient deficiency because of under feeding OR a PH imbalance resulting in nutrient lockout.
Are you checking your PH? What are you feeding?
If your using tap water, and not adjusting the PH, that is probably the cause of your problem. Nutrient lock out.
GS

Have u looked into bubble cloning!!.....
https://www.rollitup.org/dwc-bubbleponics/196684-my-homemade-bubble-cloner.html