heat/stress related! please help

hey guys! my first post and first grow.

anyway i bought a hindu skunk clone.


its begining to develop these weird marks on its leaves. these marks are very recent, i noticed them in the evening but i checked on it this morning. throughout this period, the box was undisturbed.

im not sure whether its due to stress of the change in environment or its because of being to close to the cfls. btw, im growing in a storage bin.

i believe its 18gallons. i have 4 cfls, two are 26watt equivalents and the other two are 15watt equivalents. all are at 6500k.
i do have good air circulation so i dont think thats the problem. however, i dont have a thermometer at the moment so i cant be certain. i have yet to re-pot the clone so i dont think the pH is an issue because its the same soil from the club.

any ideas? im starting to think it may just be due to the heat from the lighting. its about 7 inches away from the lightbulbs. or from the change in light cycle? idk what kind of schedule it was on at the club. i actually went 24/0 last night because i have seedlings in the box too. that may be the cause of the problem. anyways, im open to all input and criticism.

CFL's shouldn't be more then 2-3inches away or they wont penertrate the canopy therefore wont do very much at all.

it could be that you didnt repot it and its taking required nutes out of its leaves. most collectives will tell you that you need to repot within a few days of purchase

they need to be 1-3" away from ur plants for starters, and if you only have 82watts equivelent, that is not enuf, do you mean true watts or equivelant watts?

did you mist them with the lights on?

looks like its heat related to me... just got a little burned. get a thermometer asap and let us know what the temp in there is.

also, prob not the best to use a 24/0 cycle. try a 20/4 cycle... they need a little break from the light every now and then

im using 24/0 light and my babies are fine, people say that the plants need the sleep but in my opinion if your using low watts like you are your gonna need the plant sucking in as much light as it can. it looks like a hot spot on your leaf.. get a tiny fan and it will solve your issue

thanks for the responses guys. im gonna pick up a thermometer today and possibly a couple more lightbulbs. how many watts(equivalents) would be desired for a grow box of this size? a heat spot makes sense, so im gonna try to get more circulation by adding a small fan inside the box. im also gonna repot the clone today! hopefully all these changes will fix my problems. thanks for the help

i would say get 6 more cfls and put them on the sides and to surround the plant in light.