This morning when I fed my fish I noticed some (like hundreds, actually) tiny, tiny, tiny, did I say TINY, little brown things crawling around on the gravel. We have 3 Blood Parrots, 1 Bristle nosed Pleco, 2 snails (suppose to be Nerite snails). There are no live plants in this aquarium. We have had this for over a year. We were able to extract some and put them under a microscope. I still have no clue what they are. Does anyone know? If anyone knows, are they bad? Do we need to rid the tank of them, keep them, or? Also, where did they come from? Did I just make a new life form, by miracle? Thank you for any input you may have! I'm just confused.