Please help me identify what this is

[bigbunk03]

Hey everyone, I need a little help identifying what this red thing is protruding from my rock that has this string like stuff coming from it sometimes. Can you please help me?

Thanks!

 

[worm5406]

a vermented snail...

 

[cody6766]

If you can, fill it with superglue if it irritates the coral around it. They're otherwise harmless IME

 

[bigbunk03]

Thanks!

 

[bigbunk03]

I used my turkey baster which is stainless steel and broke it right off. My clown fish didn't even let it hit the sand before he ate it.