Help with ID please - what is it?

[SebM]

Can someone tell me what this is please?

 

[KrisReef]

Kind of blurry, but it appears to be a gumdrop goby near a vermitid snail tube?

 

[keagan]

Kind of blurry, but it appears to be a gumdrop goby near a vermitid snail tube?

+1 vermitid snail tube or mabey a sponge it's pretty blurry so it's hard to tell if it's a tube or a mass

Edit: the longer I stare at it the more it looks like a tube I think Kris is right

 

[Euphylliaphyle]

Looks like a Sea Squirt or other Tunicate to me.

 

[SebM]

Thanks guys. I’ll try to take a better pic. It’s that whole mass. The tube only appeared in the last week or so. It’s been growing for months.

I don’t think/hope it’s a vermetid snail. They shoot out this long tentacles, don’t they? Haven’t seen anything like that.

 

[kevgib67]

I’m going with tunicate as well, I got a few from the TBS live rock. Where did your rock come from?

 

[KrisReef]

Phone screen isn’t working for this

Tunicate seems likely

 

[SebM]

Ok tried some more pics.

This is actually on a piece TMC dry rock. The tank has two tall TMC dry rock pieces (one each side) and then a structure in the center where I used rocks straight from my old tank (not dried, straight in). Those were originally also dry rock but are a good 5 years old.

Tank has been running since last October (pic at the bottom).