Why does your worm farm have other insects?

Your worm farm is a living culture, a colony of organisms and tiny insects, all working together with your worms to convert organic matter into humus. So don't worry too much about any other little beasts that are in there. Earwigs and springtails are often found in worm farms and will help the worms break down the food.

Ants might move in if your farm is too dry. A little more moisture will drive them away. Open the bottom tap, remove the lid, and leave it out in the rain for ten minutes. This won't harm the worms, just like any rainstorm, but it will scare off the ants. (Remember that worms will climb up to get away from moisture, so don't let them climb out of the top.) If your worm farm has legs you can keep ants away with Vaseline on the legs, or by standing the legs in little dishes of water.

A good lid on the top should keep cockroaches away too, though they won't do any harm to the worms.