problem with leaves

[smoketoomuch]

Hello farmers. I'm new grower and I need your help. My problem is - my leaves are getting dry and and dry and they are braking at the end of the leaves ... I have 4 strains inside, 2 of them are getting this problem. I feed all of them with the same nuts. What can be the problem ? I attach some photos

 

[St3ve]

what is the hi-low room temps? Size lights and distance? Humidity?

 

[Seamaiden]

I've looked at those four times now, and I'd only be guessing since I've never even seen anything quite like that. I've had girls going in RH as low as 30% and never seen that, but it does make me wonder.

A lot more information would be helpful.

 

[jansjukebox]

Is their by chance a fan blowing on them that might be drying the leaves like that?

 

[Green Supreme]

More info please. Food, medium, lighting etc. Peace GS