plant problem

what is causing my leafs to curl up on the sides?

??????????????

that looks like heat stress. how hot is your grow area?

motoracer110 said:

that looks like heat stress. how hot is your grow area?

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how much magnessium are you feeding your plants?

Heat stress but also can be copper deficiency from what I know but I'm certainly no expert. Make sure there is plenty of good ventilation in the room and maybe move the lights up a little bit. Depending on what type of light you have depends on how much you should move it. Just my opinion.

temperature stays between 65 and 75, with a 600w hps thats 3 feet above

What are the nutes used? ph of water before/after? Its not temp, you could actually go 5*-7*F higher.

nothing yet there only 2 week old clones i was gonna wait a few more days before i started nutrients. the ph of the water is 7.5 what should it be at?

I prefer 6.3-6.5 but yours isn't drastic..I'm really not sure on this one....They are clones? what schedule were they in before you got them? and what light schedule are you in now?

yea 24 before and now 18-6 there doing good now and starting to take off