Springtails are admirable little creatures. Have a look at this 2 minute video taken from the BBC's great Life in the Undergrowth documentary series.
Phytoseiid Mites (Phytoseiidae)
Phytoseiidae is a large family of mites, with more than 2500 described species. Phytoseiid mites are tiny, usually light to dark brown, with slightly hardened shells. These mites have very rapid life cycles, moving from egg to mature adult in less than 10 days. Some phytoseiids feed on plant tissue, but most are predators of small invertebrates (such as other mites) and usually live on plants. Since phytoseiids are very good predators, they are commonly used to control pests that attack crops. New species may be able to help protect more crops and the School Malaise Trap Program caught seven phytoseiid species new to the DNA Barcode library. In fact, some these possibly represent new species to science.
Here a video of one mite eating another mite.