A quick search resulted in this:

http://boards.cannabis.com/plant-pro...-12-hours.html

And a few others, but it seems to be a pH or overfeeding problem

As for the humidity it sounds prefect to me...
redtails Reviewed by redtails on . FIRST GROW, ANY ADVICE APPRECIATED!!(PICS) I just wanted to start off my thread by thanking everyone who post info on here that has benefitted me. I think this site is awesome as well as the people in it. Now on to the good stuff, I planted this seed that last week of august and have been trying to keep up with it with the information that I get from you guys. I just want to know what you guys think of the look of the plant and and advice that maybe some of you will have. Thanks again! *the vertical light was just a test and Rating: 5