red spots?

[This Guy]

My 2nd grow is moveing right along, but i noticed a few red spots forming. anyone know what this night be?

 

[This Guy]

Bump, please I need a little help, i don't wanna mess these up. I THINK it is nute burn but i'm not sure

My 2nd grow is moveing right along, but i noticed a few red spots forming. anyone know what this night be?

 

[This Guy]

1 more bump, help the rust spots are spreading a little bit and its all forming in the cola, I cant seem to narrow it down. I just did a thurough flush

Bump, please I need a little help, i don't wanna mess these up. I THINK it is nute burn but i'm not sure