Natures sanitation engineers.
Springtails.
https://extension.umn.edu/nuisance-insects/springtails
https://www.microgreening.com.au/blo...ehensive-guide.
For those that have potted plants or terrariums you might see these fellas busily running about doing their daily chores in the leaf litter.
Do not fret they come with the territory.
There is an incredible interest in introducing micro fauna to simulate the native ecosystems that are created under glass.
Springtail colony's can be purchased on the internet or they can be collected in your own backyard.
Other types of micro fauna for sale for the terrarium enthusiast include Isopods(pill bugs) millipedes, snails, spiders, and many more small critters.
Fungus gnats are free