Full yellow leaves on young plants. First grow.

I think the problem is that I fucked up and should have just waited on using any kind of nutrients at all for probably another week or two. I have probably also been over watering a bit, but I have gotten better. The first ones I started in solo cups, but the rest I started in larger pots and it took a bit to get used to how much water they'd take because the top of the soil would dry so quick.
Lighting is fine, plenty of air/movement, temp/humidity all fine. I really think its just that I got a bit excited and started too much at once instead of just letting them be until week 3 or so then start nutrients. And the nutrients I was using were shit, or that I wasnt using them right, or both, or too conplicated or whatever... Im going with a simpler 1-2 part tried and true nutrient and just keeping it simple from here out so theres less margin for error.

Big pots will do that its not nutes or anything else.....it was over watering wait till ur pot is really light when u pick it up....don't go by if the top soil is dry...the roots won't grow if they don't have to strive for water.....go 16 oz Styrofoam cups with holes poked in the bottom...to 1 gl pots to 3 to 5....stay true to watering by weight.... Ull know when it'd time to transplant pots by multiple roots visible thru drainholes

PS I don't know if u need to know why u have to have drain holes or what ur experience level is I started of stupid so the reason for drain holes is so when u water the water has a place to go not just sit at the bottom.was ur soil dries the roots chase the water down to the drain cause a healthy massive root system which will help with beautiful foilage ...most pots don't have holes so I thought u didn't need them but I figured it out.again that may have been something u already knew but just thought I'd explain

Daloudpack, thanks for your reply. Yes, They all have drainholed except for the 2 smart pots obviously; and yes, I understand why they are needed i think your correct on half of it. I believe I was over watering a bit in the beginning, until I started using the pot weights and look/feel of the plant. I also think it was a mistake starting then in large pots as it made it mkre difficult to guage when to water and also maybe have slowed growth a bit. I just tipped one upside down (carefully) and the roots are conpletely grown around the bottom so that it held its form when take out of the pot. I will definitely be re-pottig them all on this weekend ito either 3 gallon plastic or their final 5 gallon pots (smartpots? Haven't decided yet).
They will all be receiving water only until I some recovery then starting on a simpler nutrient program.

Wow... I just re-read, and pardon my spelling. Im always using a phone for these posts.

Also, heres poctures of today as of an hour ago. Some close-ups of the healthier girls. They have all received the same of everything. As accurate as can be with hand-watering.

Heres today. You probably can't tell from the pictures, but they look a bit happier today after a good flushing with water only yesterday. Some light LST on the largest of the two bagseed plants. The other one... I dunno whats going on with it. It looked fine until I topped it for the second time and accidently clipped a little of the new growth and now it just hasn't looked healthy since. Yellowing/curling new growth that seems like its almost dying off ir like it was clipped.
Im more concerned with the smaller 6, but they will be fine.

The worst one is still not looking too hot. I think it will be fine but maybe not the quality/yield Ill see with the other ones but thats ok. One of the new growth nodes is a very deep vibrant green while the other is yellow/pale and severely stunted as you can see in the picture. Ive been giving water only adjusted to Ph 6.5. I transplanted 2 of the others yesterday and they are definitely all ready for this. The roots completely held their form when dumped upside down.
This is all a learnig experience for me and now I know what to expect for next time. Ive learned:
1) Do not start nutrients until 3-4 weeks or as needed until then.
2) While Ph is important, when using a good soil I should not stress so much over it as it contains natural Ph buffers that allow for some wiggle room.
3) Start in smaller pots and upgrade as opposed to starting in larger pots.
4) Stop micro-managing them!

The flush and transplant into large pot absolutely helped! Take look at the change in 2 days. A lot of the yellowing is starting to fade back to green. And the new growth in the center looked very yellow and like it might die.... Now its a lush green and much much bigger.

Ajhh much better congrats