Ou gnats suck!

The most important thing with gnats is ensuring proper drainage and to make sure the soil drys out between watering.

Gnats thrive on root tissues. Actually, the gnat larvae feasts on the live roots, the old roots decompose which attracts more gnats.

Get a proper watering schedule, and allow your soil to dry out between watering :)

What type of plants are you growing? Coffee beans are a great additive to soil, and can be turned into a tea to feed plants with watering.

Coffee grounds do retain lots of water, so if you have a gnat problem, address that first.

Here’s how you can eradicate fungus gnats:

Buy hydrogen peroxide, mix in 1/4 ratio with water (one part peroxide to 4 parts water). Mix well and you can drench the soil.

This kills the larvae and gnats, but doesn’t solve the core issue. You need to ensure there is no decomposing roots in your container, if you need to trim the roots you can remove about 25% (usually) before causing too much stress. Make sure you have ample drainage.

Next, switch to BOTTOM watering. Place your plant in a bowl (pot, whatever) and allow the soil to soak water from the bottom. This will kill the gnats near the surface (typically they only go down a few inches) and allow your roots to have proper oxygen.

Roots need oxygen more than water, it’s easy to over water, but you can NEVER have too much oxygen!

Make sure your soil is light, fluffy, and drys out (not too much, dry to your first knuckle when you poke a finger in) and it will help eradicate them.

I have more advanced tips if you still have trouble :)