What is this weird thing?

[redsurfer]

I have found this little thing and need to know if it is good or bad! so it is a white tube about 1 cm in length that is connected to a rock and has a little guy that is hiding inside i can see 2 little antenna peaking out sometimes He spits webs around where he is. I will try and get a picture tomorrow but since it is so small it is hard.

 

[ErinCahir]

It's a vermatid snail... they can be a bother, but they won't harm anything in your tank. You can superglue it shut if you like.

 

[little_fish]

+1 Erin

 

[Salty B]

I agree. Be careful moving rocks around...those little buggers are sharp. At first I thought spionid worm because of the white tube and 2 antenna but I dont believe they make webs.

 

[Smitty]

+2 erin...

 

[ghostryderflhx]

not sure have a ton in my overflow and have had for years they dont seem to cause trouble so I just let them go

 

[hazelsdad]

do they look like this? :o)