Need to ID mini feather dusters

[goldenriver]

I search online forums for a while and can't find any exactly info about what I have in my tanks lately.They are look like mini feather dusters maximum 1/2 inch in long and 1 mm in diameter,except there no feather come out from the end of tube ever.They are stick out on live rock and back wall of tanks,the only activity I see is when I blow out the rock or stir the sand bed thet shooting out a white strings like a spider web.I doubt I get them from frozen foods caused I have these tanks for 6 years and it started when I swicth to new brand.They spread out pretty fast and I worry they will out run the tank,no thing harm so far but they look unpleasnt in my eye and anyone know how to get rid of them.Any word would be appreciated!

 

[Chuckd76]

Vermetid snails.
Some people superglue the ends of the tubes shut. Alternatively you can scrape them off the glass.
They aren't really harmful unless you have a lot. They can irritate corals with the mucous web they send out.

 

[goldenriver]

Thanks much Chuckd76 ! Is anyone try to kill them using lazer pointer or any method without taking the whole tank down?

 

[goldenriver]

Thanks much Chuckd76 ! Is anyone try to kill them using lazer pointer or any method without taking the whole tank down?

 

[gallegos]

I cover the whole thing in super glue and smash the shell. Their strand web thing irritates coral

 

[Chuckd76]

Thanks much Chuckd76 ! Is anyone try to kill them using lazer pointer or any method without taking the whole tank down?

No lasers needed really.
Just squish the tubes using tweezers or something similar. Once the tube is broken the snail inside is defenseless and may just get eaten by a fish.
One word of caution: the tubes are sharp enough to pierce your skin, just like a hypodermic needle.