id this hitchhiker

[Newbiejb]

Hi can you please id this hitchhiker i found on my live rock tx

 

[tekkengal]

That looks very alien. Does it move around or stays in that spot?

 

[Newbiejb]

It does look alien I haven't seen it move the rock is in my sump

 

[tekkengal]

Could be some sort of bivalve (like a burrowing clam etc). if it is staying put on that spot and isolated in your sump then it shouldn't be too much cause for concern

 

[Newbiejb]

I think you might be right

 

[Newbiejb]

Looks like a bivalve