I did indoor grow once and still have set up the whole thing but there has been water damage so needs work. Gnats where a huge problem and someone recommended adding fans. I didn't add fans but I did take the ac ducts and constructed more ducts that came from the ceiling to the floor so the air would blow upwards. The ac I have is one that uses water to cool the air through some "filters" called "Paja" in my native tongue.
I'll show it later when I get home.
But the air flow kept those gnats at bay. Due note that I kept this running 24/7 which in turn not only kept the gnats away but also added humidity. I aim to reduce the velocity but that requires tweaking the AC machine a bit.
With the lamps I had it added heat and this there was some sort of equilibrium with the two. I would love to have something to regulate the humidity but not enough funds for that. All in due time.
Another thing you can do to get rid of them is add some repellent. Sunflowers if your outside works great or mint. Other than that, there is something you can spray that can be with all natural ingredients too that I forget. Basically take a cloth and spray that and wipe the leaves with it.
Hope that info helps.
They are annoying I know lol
Oh good idea on the airflow, I have fans but they only run when the lights are on. Maybe having them go all the time would make a difference.
I run a humidistat, with a target of around 70% the product is called "Inkbird Humidity Controller" and you can find them on Amazon.
Between using misquito bits and the fly paper it seems I have gotten them under control. Seeing less and less on the fly tape every time I replace it.
thanks for the tips on companion plants.
Let those plants be pushed around from the wind a bit all the time. It will help them grow strong. 💪
And Thank you for the recommendation on the humidifier. Looking. At their website now.