I'm about a week into growing, and I'm getting a small brown spot on two of my plants. Im thinking that its probably over water...pics soon..any suggestions at to what it could be?
If they're regular gnats, they won't hurt much. If they're a little bigger, and look like little flies, then they are fungus gnats, and those can hurt your plants roots.
Buy or make a yellow sticky trap, and place it near the bugs. When you catch one you can get a good look at it.