Help!! Worms??

Jun 2, 2008
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#1
:confused:
Can anyone help me on this one? I been having my tank for 2/3 years. Recently I notice a bunch of worms like things in my tank. They are in a tiny tube which look like been made by the sand in the tank. There are 2 worms like creature per tube and the extend out of the tubes. They are almost hair like about the size of a shrimp antenna and transparent. Any know what I am trying to describe? How do I get rid of them? And are they harmfull?