I cant even photograph them, they are so small. Like a grain of sand if not smaller. I was looking really close at frenchy while he was against the glass and saw one on his hand and one on his foot. They are extremely small, like itd take 100 if not more to take up his entire hand. But im worried. Would they be mites? they are reddish brown in color and have shiny, circular abdomens and not much of a thorax but they do have one, unlike most mites i see, which just look circular usually with a little head. I cant count how many legs. But i think they are mites because i dont know what else it could be. Im not sure where they came from. But is this a bad sign? should i be replacing the substrate and washing everything else in frenchys cage?