to deal with the larve in the soil:
scrape the top layer of soil from your pots ....water the pots with Neem Oil, 3 tablespoons per gallon of water, flood them well , to kill the larve......replace the topsoil with fresh soil,
to deal with the adults
sprinkle powdered garlic on the soil to repell the adults, yellow sticky traps also work well paced on the soil
during the night cycle, put a couple "No Pest Strips" in the room, turn off the fans so the vapor builds up in the room.
dont forget to turn the exhaust fans etc back on next lites On period
looks pretty healthy, take car of your bugs