Fungas Gnat control I assume? Forgive me if I'm wrong but I'm too lazy to go back and read. I've had great success using this-
View attachment 2003689
Bought it at home depot for like $8
Rips open the gnats guts I read somewhere. 5ml per gallon I drench em. Then a few days later follow with foliar application same dose.. few days later, repeat.
Also sprinkled some cinnamon on the top of the medium. You ever sprinkle cinnamon on a gnat? They go bonkers, roll around in agonizing pain. It's actually kinda fun to watch.