Can you give us some more information? How many days since they sprouted from the medium? They spouted on the same day? What light are you using and how far away is it from the top of the plants?
I've gotten dud plants like that before; sprout from the medium and then eventually keel over and die all while another seedling next to it is thriving.
They both sprouted 14 days ago, I have the under and aglex 2000. about 2 ft up and running about 50% I had it a lot higher when they sprouted but dropped down when the other plants started stretching to much.
@Dave Lafreniere May just be a dud then 😐
I've had this happen. I think its because it didn't shed its shell and allow it to get proper light. Its not a seedlings or root issue I believe. But this is a test. Why would Mr.Growit ask it, he's the pro.
@david hughes I didn't ask it ?