Pest issues

I’m running a Martha tent. Humidity running between 88 & 95%. Temp 73 plus or minus a degree. A fan that runs 4x a day for 1 minute intervals.

I have a cannabis grow tent in the same room. With no pest. I have fungus gnats. I have hung yellow sticky traps which help but are not eliminating the problem. I have 7 trays fruiting. Some of which are stalling, the ones that seem to be heavily infested.

What’s the best corse of action. I have gnat nix on my coco in my cannabis tent, would a layer of this act like vermiculite on a brf cake and allow fruits.

Or should I go chemical and toss everything then clean?