I have fruit flies
 

To Ron I have fruit flies or some kind of really small nats in my grow room on my pot plants. Why would they be in there What do they want with my plants. What is the best way to get rid of these. They do not appear to be harming the plants but they are an extreme pest. Thank you for your time.

Hey nats got to catch a buzz too. The best way to get rid of flying pests is to hang those yellow sticky bug traps all over your room. Then use wind power from fans on your plants to keep the little bastards moving until they get stuck to the trap.
That may not sound to effective but if that fly is pregnant then the bitch won't be having any more bastard nats.
Or go buy some bug spay poison and kill them and yourself.