2 week old PC grow. Leafs dying..emergency!

Basically its under 2 25w blue and 1 25w red.

I water it every few days when it gets dry and the temps never really go above 80 or below 65...There is new growth which is encouraging but all the "older" growth is dying and don't know why!!!

Any clues? Thaank youuu!!

It could be root bound in the little cup. Can you see them in the sides of it? If you can you need to re pot it in a larger container.

It most certainly is not root bound. It looks nute burned along with a bit of over/under watering.

Are there drainage holes in the bottom of that cup? What kind of soil did you use? How often do you water? Are you using nutes?

uh, over watered... tranplant to bigger pot immediately