Whats wrong with these babies?

Well not sure whats going on with these guys . so seeing if anyone can help me out.

I thought it was from underwatering because the new growth looks fine on some plants but the old growth is dying. but when I watered again they look even worse so now im leaning toward overwatering? but I have no clue.

Whats the easiest way to dry out the soil , besides transplanting? There are three huge wholes on the bottom of the cups but still seems they are still dying slowly. help what can i do?

i dont wanna transplant yet cause i wanna see with ones are stronger than the others and go by process of elimination. I can only keep about 5-7 for the full grow. 7 Bagseed and 12 jamaican seeds. PLEASE HELP!!!???!!!!

I am no pro, but this is what I am thinking...The way the leaves are hanging looks like they could be over watered. Let them go a day or two and stick your finger down in the soil and see if it is still moist (or use a moisture meter) - if so don't water. I am also thinking they need a bigger container. They might be getting root bound. The yellowing could be from nitrogen deficiency. But again I am no pro. But I am going from issues I have had from my grow and how I fixed them. If they were my babies, I would transplant them into a bigger container and use some good soil. I hope this helps. Hopefully a pro will give you some advise. Good Luck !!!

If you truly want to do process of elimination then yep, get them into bigger pots so you can see who grows best...then keep those and send me the ones you don't want...