This is the strangest thing one of the fruit fly cultures that I got from josh's frogs seems to have these tiny black bugs in the mix with the fruit flies they are about same size or little smaller then the smallest fruit fly. These black bugs can fly and hover but have no features that make it look like it could be a fruit fly crossbreed or something and they seem to feed on the same media as the fruit flies and dont look like mites or anything that I seen!