Im getting a few brown spots, I suspect... overwatering, heat stress, pH too low (even though I just corrected it) or some deficiency.

Let me know what you guys think, Thanks.

looks like heat stress to me.

what type of soil?

what type of lights?

what type of nutrients?

peace out

__________________
WHATEVER THAT IS POSTED UP HERE IS ALL FROM MY MIND, NOTHING I SAY OR DO IS TRUE!

soil = fox farms ocean forest
lights = 400w HPS
nutes = botanicare pro bloom

that all sounds good.

how far from lights?

how tall and old?

how is your air flow?

__________________
WHATEVER THAT IS POSTED UP HERE IS ALL FROM MY MIND, NOTHING I SAY OR DO IS TRUE!

now that i look closer i can see the leaf edges curling up. its def to hot in your grow room what are the temps?
Peace out

__________________
WHATEVER THAT IS POSTED UP HERE IS ALL FROM MY MIND, NOTHING I SAY OR DO IS TRUE!

That definitely is not heat, because you can see it on lower leaves that are not exposed. This is a lot like the problem Iam having except my leaves are curling upward. It looks like your girls are starting to flower. If this is indeed the situation they are just using up all the nitrigen that was stored up. If you are flowering there really isn't much you can do. It hasn't affected the buds yet has it? If not you just need to ride it out till harvest. Good luck

No not really affecting the buds yet, just worried about the overall well being of my plant since itll be about another 5 weeks til harvest.

Guess I can just ride it out, but overall everything seems to be going well.