They seem to make house "tubes" out of sand. I thought they were some type of algae untill i saw a peice of food roll on the sand and these wormies grabbed ut and pulled it in. They are see through. Thin like a tiny string. They are all over the botom of the tank as well on on the lower live rock. ALSO- as i was studying them today, i knoticed a pair of a different kind of worm! There were 2 of them, they are dark in colour, and have tiny hairs all over then. Look kinda like the arms on a hypothetical timy brittle star. THEY ALL GIVE ME THE CREEPS! ...i would just like to know if anyone knows what they are and if i should removve some to control the "population". thanks!
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