busted leaves... need help

got 3 questions:

so got a small white widow and blueberry under a 125W cfl vegging in soil in a small cab. it's not ventilated as well as i'd like. the temp below the leaves creaps up to 90 for hours sometimes, and stays between 75-90. (i have plans to fix all this in the future... waiting on $)

anyway, some leaves, started turning yellow. i assumed this must be a signal to begin ferting. Am using pure blend veg organic fert. started with 1/4 recommendation. have continued increasing fert to now normal amount each watering. no pure water inbetween so far. Q: should the yellow leaves go back to green?

Also: the leaves mostly on the top are curling the tips (especially the white widow. it seems to be less robust than the blue berry). i think this may be heat stress but i put them out of the box in a cool windowsil and they have not straightened out yet.Q: could it be root bound? Or is this a heat issue?

Finally: some of the newer leaves arn't 5 leaves, they're 1 or 3. Q:is this a signal that something is wrong?

Your yellow leaves will not get better, they should get worse and eventually fall off, They may be affected by the heat (b/c of their age ) but 90's heat (for weeks at a time) should make them hermie, not stress to the point you suggest. and 3rd Q:, Don't know, but the plants may be maxing out (odd, never seen it happen that young)
:stoned:

I read just A little while ago the the tips of leaves curling up is A heat issue.

lower heat and less nuts if you cant ventlate properly wait till you can dont get disapointed on your first grow we all kill a few

what is a hermie? a hermaphrodite? what are the consequences? oh shit what should I do? the new leaves are coming in as just 1. there are not 5 anymore. anyone know what this really means?

Mabie its growing new leaves?