The question was asked once, but I saw no reply. Do you have any stagnant water near your grow area? I made the mistaken of leaving one of my girls in a tub in which she did not take up the entire bottom of. Some of the stagnant water attributed to a few gnats flying around in the room. After I got rid of the tub, they disappeared.
One thing to consider is that you may have more than one pest. Where one critter is found, others are sure to follow, I imagine. You may see the gnats, but your issue may be with another pest.
One thing to consider is that you may have more than one pest. Where one critter is found, others are sure to follow, I imagine. You may see the gnats, but your issue may be with another pest.