I got some yellow spots!!! help pls!!!!

[whereismymind69]

I am worried ... i love my babies, it is the first time i am growing and i don't want anything to happen to my babies!!

I noticed about 3days ago two small yelow spots on one of the plants but i didn't worry so much for being difficult to notice. By now there is a few more spots on this plant and another 1.

They grow in a hot enviroment, 90 to 102, i am working on cooling this down with an extra fan. But it is not extremely hot, isn't it??

The 400w hps dual spectrum is about 20'' above the plants. I think these are the right conditions, so i guess the problem must be something else.

Has anybody got any ideas, pls!!!!!!!!! Thanks a lot!!!!

[Stoney Bud]

I noticed about 3days ago two small yelow spots on one of the plants but i didn't worry so much for being difficult to notice. By now there is a few more spots on this plant and another 1.

They grow in a hot enviroment, 90 to 102, i am working on cooling this down with an extra fan. But it is not extremely hot, isn't it?

Yes, that is too hot for MJ. 75 is perfect. 80 is acceptable. 85 can even be tolerated if the roots are kept cool at 75-80.

90-102 is too hot. No way around it.

You'll have to find a way to cool your growing area.

Are you growing hydro? What kind? What nutes? How strong?