There is no anger from me, but when somebody goes out of their way to quote me and say that they couldn't disagree more with me then I want to know what they think it is, if the best answer they have is "mystery bug, go ask Columbo" then maybe they should have just given their own advice without trying to make me look like a fool.
You said that you checked every where for bugs and honestly with the kind of damage that you describe you should be able to find a dead one or eggs, lava, bug shit or some kind of sign that is some kind of bug. Azatol kills every kind of insect that has been mentioned in this thread.
then you for no reason said
If you want to continue to think it is ph or a fan then that is fine with me.
The second you said it wasn't I had already dismissed that possibility, doesn't mean that I think it's a bug. Only reason I came in this thread was to try to help a grower and instead you guys act like you have some kind of super experience and I don't know shit. Sorry guy, been growing 9 years and I have never once seen bug damage on a plant indoors where you couldn't find any signs of bugs other than leaf damage.
You guys need to learn a thing or two about respect, if you're going to point out somebody to disagree with (me saying it doesn't sound like bug damage) then have the courtesy to have a real answer, not "the super slick ninja bug from planet X"