what's up with my plants?

Hopefully it's obvious in the pics.. but...

600W aircooled, 79-83 degrees (but had a few high 90 days when running CO2 in closed environment... it is now exhausting through the lights), always 6.0 PH average and following feed chart, very dark at night with no light mishaps.

I have two other sets of clones, same strain (Aurora Indica from Nirvana) different mother. They look better, and the one that looks the best is closest to my entry i.e no light issues.

in week 6 of flower, coco/hydro mix. The plant is still growing, a lot, and the buds just cannot keep up?

Thanks for any help.

I dunno Im from what im seeing it looks like a mutation or something. the leaves are directly on the stalk. I think I remember seeming something about this in the Green house seed video Morocco expedition maybe.
Interested in expert opinions as well

Heat makes plants do strange things like stretch, and the leaf edges curl upward. I would call that a heat/genetic issue. Maybe a mutation, but would have to see other plants to make that determination. Notice all the leaf in the buds. This is an undesirable trait. You may want to stick with F1 hybrids for you mom, instead of nirvana's F2, F3's. I have used Nirvana many times in the past. There genetics where much better back in 2003. Seems they let there breeding program slip. Well keep that temp down, ol man! That will only lead to stretchy, scrawny buds. Any temp 90 or above MJ basically stops growing. Good Luck!