Leaves Curling upward!! HELP

What does it mean when your leaves are curling upward at the tips? Any input would be greatly appreciated.

pics please

sorry dude, i can't get any pics to upload. i don't know what the deal is. any suggestions anyway?

Could be a heat issue..

Here i think mine is doing the same shit n its not a heat issue. Its like the middle blade is like pushed together it either folds down or when u push the center of it up, it curls str8 up heres a pic to show.

That is exactly what mine is doing. What is the problem?

if u cant up load pics just open them in paint and make them smaller crop the pic and it should upload fine

Ok thats my plant there n the problems I had. I had phorous or w/e Lmfao i cant spell but thats not the picture of that. Now that is Mag/sulf def. That i'm fixing today. But what i found out my problem was .. was i was using phed water that was 5.5 for soill.. its best at 6.5-6.8 for best nute uptake in soil... So i think i was locking my nutes out .. thats why i was getting teh defencies.. spelling again ha! But im fixing her

Check the temp in ur grow space cannabis loves it at around 25'c in my experience if ur space gets to hot ur leaves will become dehydrated and start to bow upwards.

get the temp down and give her lots of misting she should be fine but keep an eye on the temp it could rune a good crop!

Going thru it too.. I think its the heat.. and humidity..