Compared to her sibling she looks pretty weak.
This is her sibling.
I can’t say what you should do. What I can say is that I have had much runtier plants (one in my current grow) that have turned out to be just fine.
Check guardrails. If you are in the pH range and temp humidity range recheck watering habits and remember 2 of the same seed can have different water through puts. No gang watering.
White widows do that a lot where you will have one that is happy with a 4 day turn but another one burns tips due to too deep a dryback
Yup you can see stalk has resumed green growth. Got some painted nails after. Have you checked for bugs? Those white spots look like mite damage, but it’s probably just the picture.
Its just the picture.
Keep the Faith…Its all part of the learning curve It may surprise you yet.
They are sleeping but Ill be sure to get some updated pictures when they are perky.
They are starting to show life 
I also think I see some mites and webbing in the first pic just above the coteyldones… could be wrong but it’s worth further investigation.
Looking good! Are you feeding any Cal/Mag? I find they really love and need it at this age
(post deleted by author)