Need help with pics

Hey guys I was wondering if you guys could help me out. I got some plants all in one gallon pots in roots organic being fed some organic nutes. They are 18 days flowering under a 600 watt. The problem is they are green but the leaves are droopy. But only for some of the which is driving me crazy. I was thinking they could be root bound, but I kept a plant in party cup just to test it and that one is perfectly fine. Anyways here's some pics. Thanks
Fire og(clone)

F-13(clone)

Black diamond og(clone)

Kasey jones(seed)

Kasey jones(seed)(test plant)

the question is not just the size of the container but compared to the size of the plant
see the plant in the cup is small and it will stay that way and eventually suffer root bound
one gallon is pretty small

but your plants look good and healthy mostly
some won't yield very much (the first pic) but some look real good.

good luck

I'm not worried about yield at all, this is just an experiment. Do you think those little budsites are gonna fill out too be good buds? I think I might be over thinking this as it is really early in flower still.

Is it too late too transplant?

Those plants look fine.

Dont transplant, not in flower at 18 days. Even if you did the root growth would be minimal and could cause more harm than good.

Just keep to watering/feeding as the plant tells you it needs it and you'll be fine.

the bud sites will fill out very nicely where they are not too spaced between
in plants that are stretched with high internode space, you will only see popcorn buds