Hitchhiker ID

[Ambie_reefer]

I got my live rock and I am cycling my tank, I noticed this interesting hitchhiker on my live rock. I’m completely new to this and have no clue what it could be.

 

[jsker]

Tube warm, good filter feeders

 

[Reefapprentice]

Looks more to be a pineapple sponge

 

[Halal Hotdog]

Looks like a pineapple sponge to me as well. Nothing to worry about, they come and go. If you ever start carbon dosing you will see their numbers explode. Some angels like to munch on them.