I let my plant outside for a day and next thing I know I have gnats living on the Growstones I put on top of my soil. I've been crushing whatever I can with my thumb and I used a fan to blow them off and a spray bottle with a drop of soap in it but not much has worked as well as just crushing them. Anything I can do other than spraying some more aggressive pesticides? I'm not up for bleaching my soil.