help a brotha out!

Hello fellow growers, Nearly four months into growing, I have noticed some white spots on the leaves of my plants. Of course I checked online, but the spots seem too defined (not powdery enough) for powdery mildew, but I also checked very well and couldn't find any webs or mites, which most...

I changed 12/12 and did transitioning to flower with nutrients as well, 10 days ago but no white hairs at all nothing has changed. I have a light rail with the light and it all came down and killed many of the branches, i cut what was going to die and top them where i could. What sould i do...