What the heck is this...? Nuisance?

[JammyBirch]

http://i1336.photobucket.com/albums/o649/Flemingtb/20150525_124447_zps0lpxznra.jpg (http://s1336.photobucket.com/user/Flemingtb/media/20150525_124447_zps0lpxznra.jpg.html)

Found 3 of these in my sump. They look like tape worms or something...

[cloak]

Some sort of Sea Cucumber perhaps?

http://www.advancedaquarist.com/2003/1/inverts

[JammyBirch]

I did more looking around online but still can't find it. It's a hollow tube, maybe some sort of tube worm.

[billsreef]

Picture isn't sharp enough to be positive, but looks like some kind of Synaptid sea cucumber.

[ThRoewer]

Some reading material: Aquarium Invertebrates: The Medusa Worms (http://www.advancedaquarist.com/2002/11/inverts)

Sea cucumbers can be dangerous due to the poison many (all?) of them have - even the good ones.