@jujube Just recently a friend brought me a new houseplant and wouldn’t you know it had gnats and all my plants started to look miserable. Well, I got out the old trusty diotomaceous earth and put some in all the pots…gnats gone.
I know what you mean, we have started veggie plant’s indoors and the gnats were terrible. There is a Great forum topic on @ Plants, Gardens, Cuttings–All the Feels!
Please repost there to help send your experience!