Fungus Gnats

Couple ideas of what some already said. You can put some vinegar in a small dish, add a drop of dish soap, cover it with plastic wrap and poke small holes in it. Leave it in your tent and the gnats will go for it. Yellow sticky traps work great too. Cut them in small strips, peel one side off and leave them on your soil, sticky side up. Diatomaceous earth works also but isn’t as effective once it gets wet. Above all else, the topsoil needs to dry out before watering again. A constantly wet topsoil is perfect for gnats. These should help for now but I’d recommend a couple soil amendments for your next run. Neem meal and crab meal are excellent amendments for pest prevention. I do all organic dry amendments and build my own soil. Since adding these to my mix, I haven’t seen a fungus gnat in over a year. I still keep sticky traps in the tent but none of them have any pests on them.