Mate, is that little spot all you have? If so you're in luck because that's nothing. Unless it's all over your plant. What I see looks good! Have a wonderful harvest!
Looks like splash burn from watering while light is on to me if a drop of water gets on leave and you have a hid light on it it will burn like that Looks like splash burn from watering while light is on to me if a drop of water gets on leave and you have a hid light on it it will burn like that Spodermites youd see webs lil like caterpiller web looking things