Pest control looks like fungus gnats and larvae

Hey dude, looks like quite a large population you got so you gonna need to move quick: 1) get online / gsrden store and get yourself diatomaceous earth and lightly dust this on your soil surface - when it is dry this rips the adults bodies apart and they dry out and die. 2) at the same time get some nematodes SF - they will eat the larvae but use a tiny tiny bitnof the egg powder. 3) you are using synthetic nutes so you can apply a neem drench or a h2o2 drench to your soil 4) stick the fans on cause they are rubbish at flying 5) watering habits - fungus gnats love damp soil conditions, are you letting the pot dry inbetween waterings? If not, time to dial in them watering skills. - a good tip is weigh the pot, water it, weigh it again - every day weigh the pot ubtil like 85-90%% of your water has gone and then water again. Hope that helps.

I like to use beneficial parasites that kill off fungus gnats majority will be wiped out after first watering in.

I throw the little stickies for early warning system even if I don’t have any. I also use safers 3 in 1 but sounds like you already have a spray. It sucks man. I found some spider mites today under my pots. Let your soil dry out. Gnats hate dry soil. You can also sprinkle some diatomeacious earth as a top layer on your soil. It’s like barbed wire for them when they go through it. Good luck man.