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Was just doing the usually stare down of the tank and this thing kept pokings its head out of the like rock it looks like a worm with furry arms comming out of the side or something real small hope the pics help
If you plan on keeping corals, some (SOME) bristleworms will snack upon corals. Selectively remove only the one's that you catch snacking on your corals becuase the others are beneficial scavengers.