Friend or Foe??
Hey everyone i'm into week 3 of setting up my new 120gal aquarium. Right now there's only live rock and sand. Upon closer inspection i've notice alot of very tiny white critters on the glass. Hence i was wondering if they were friends or foes? are they some type of parasite that will later on attack any fishes. It should also be noted that a few days before i added some bacteria, but i always thought bacteria was something you can't see. So right now i'm stumped...any ideas??
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