I had a culture of fruit flies on my desk in my work room, and today I realized that the little dust-like brown flecks weren't droppings, but exceptionally small mites of some kind. So small that I couldn't even tell they were moving until a pile of them started shifting. I placed the container immediately into the freezer, and will be disposing of them in a sealed bag in the morning. I know this won't kill them entirely, but it will do the trick until I can properly dispose of them.
It seems unlikely that the mites will cause an issue for my ants directly, but I would rather not have a gross infestation if possible. I keep my colony as clean as I can, but I suspect whatever these are, could really have a field day in a small space.
How seriously do I need to take these mites to ensure they won't become a problem? How much do I need to sterilize and quarantine? Can I expect escapees to die off quickly without their obvious source of food? If so, how long should I wait before bringing in a new culture? I haven't been feeding my ants fruit flies lately (meal worms and fruit, though they seem to prefer flies) so I probably haven't directly introduced any. Additionally, the colony itself had been in a different room. Of course though, with something so small and un-noticed, I imagine it's easy to inadvertently carry hitchhikers.
Reading around on the internet has been inconclusive, with some (laboratory, so different stardards, but still) sources calling for a major sterilization, and others suggesting some people just keep feeding the same fruit flies to their ants. Thanks for any help and experience you can offer.