I'm still seeing gnats in my room. I actually did the nematodes, and I keep Mosquito dunks in my water rez, but they still hang around. Every day theres like 5 dead in my de-hum collection bucket. I have multiple hot shot strips up in my room because of mites. It wasted the mites and probably every other living thing, but the Gnats are just hanging around. As long as you can manage their population its just an annoyance, but you have to stay on top of them. I still am using sticky traps, and dunks, and gnatrol every now and then, and for now HotShots. They just don't go away.