man I tried everything to kill these mofo, let see mosquaito dunk, de, yellow sticky traps, bti, gnatrol and now I just started using azomax, I even let my soil dry out, I take the stickytraps off the top of the dirt every two days and use my hand to stir the dirt to kill them in the winter there not to bad, but they annoy the hell out of me in the summer I keep them under I would say maybe 30 but that's keep on them I hope azomax work u got to hit them every week cause little pupil grow up to be big gnats every 7-10 days so its a on going battle, stax recommend sum shit I forget what it is Im going to try next, the onyc x stardawg is dank as all hell I love weed with the spear shape calx it got the diesel dank smell for sure