 Lastly, in poorly cleaned aquaria, "Tubifex" can become established as a pest species, covering the bottom of the aquarium in a thick carpet which may be considered unsightly.In 2009, a large blobby mass made of colonies of "Tubifex" was found to be living in the sewers of Raleigh, North Carolina.Revealed by a snake camera inspection of sewer piping under the Cameron Village shopping center, videos of the "creature" went viral on YouTube in 2009 under the name "Carolina poop monster".