fungus I think!!!??

from out of know ware some leaves get wet,(its swetting)
Then when it dyes it forms some white like stains and I noticed if you wet the leaf just a litle bit the stain goes away.???????????????????
please help , their are a lot of nice buds that I just cant stand to even think of not smoking because of some problem!!!!
happy growing!!!!!!!!!!!!!!!!!!!!!!!!!!

sounds like the liquid on the leaves is evaporating and has left a mark

Hard water could do that.

Perhaps salts from the evapourated nutes in the water? Think i read that somewhere here that someone was getting white dust on his dirt.

You have to find out where the water is coming from. If it's evaporated water, it shouldn't have any nutrients or mineral left in it. It may be a fungus which is easy to treat with a rose or flower-type antifungal. But it's much better to fix the problem.
What's ventilation like in there?

1lenny my ventilation is in out fans 2 in and 1 a little bigger out heat is becoming a issu here because its summer. also I have an regular rotaring fan.

sound like a humidity problem to me, let the room air out