leaf twist nd cur lup

[zamoo]

this s my first grow pls help me im worry
3 strain under 400hps 45days old and this problem started 4 days ago
the leaves are curling up along the edges( like standing up) and they r rolling up like a piece of paper but still green (no yellow) this happen to the new growth and the middle leaves?? temp 24/29c
if any one can advice pls

[JackdaWack]

maybe ur ph, i had a plant that did that. its wierd cause there werent really any problems no discolor,i left it alone and made sure everything was what it was supposed to be. and the problem went away. however it happend in the first 3 weeks and now its doing good, it could be low humidity to. check the ph and humidity.

[The_Chronicler]

Its a problem with either a few things.
Firstly and possibly a heat issue.
When the plant does this,,she is trying to eliminate moisture from the leaves,,but cant.
Also maybe a salt problem