Some ID help please

[Spotted]

I found a couple things in my tank today during maintenance. Should I keep them or do they gotta go!!!

 

[mr_X]

I don't know what you are talking about in the first pic but the second appears to be a spirorbid worm. No big deal. He can stay.

 

[Spotted]

The first pic is the white translucent tube like things in the center of the picture.
The second looks like it is attached to the rock itself. It has 2 large holes that close. It is purple. Is that a kind of spirorbid worm?

 

[mr_X]

Are there any tentacles that come out of it at all? perhaps when you feed?
spirorbid worms only have a single hole at the end of a tube. If there are two holes then it's something else. a tunicate perhaps.
I still can't I.D, the translucent tubes, but I'm thinking filter feeding creatures for both.

 

[Spotted]

Here are some better pics. I rearranged the rocks a bit tonite.

 

[Spotted]

No tentacles. How cool would that have been to watch...

 

[Spotted]

Any input?