New clones. Were in poor shape when i received them. Starting to green up but tips of the leaves are getting yellow and the stalks are showing purple streaks.

I know this has to do with chemistry, but don't where to start.
PufferLungs Reviewed by PufferLungs on . Need Help New clones. Were in poor shape when i received them. Starting to green up but tips of the leaves are getting yellow and the stalks are showing purple streaks. I know this has to do with chemistry, but don't where to start. Rating: 5