Mussel?

[TikiBird]

So tonight we spotted this little guy in our tank! What the what?! The tank has been going for over a year and I’ve never seen him before!

He is a mussel, right? Is he dead? Poor guy. (Ignore trocchus snail photobomb)

 

[Crabs McJones]

So tonight we spotted this little guy in our tank! What the what?! The tank has been going for over a year and I’ve never seen him before!

He is a mussel, right? Is he dead? Poor guy. (Ignore trocchus snail photobomb)

I actually had something similar happen to me, I found one tucked in a piece of live rock and caught him by chance, took him out just to be safe. Yours definitely looks like a mussel or clam of some sort

 

[saltyfilmfolks]

Poke him or blow the turkey Baster at him. It'll close

I'm guessing a clam, a mussle will usually attach (and it walks too like a clam) and then attaches and I've usually find them attached. Clams seem to wander

If it's a burrowing sand clam , it might be on its way out.

 

[saltyfilmfolks]

A Mussel

 

[TikiBird]

Well I puffed a turkey baster at him and he blew over and is empty inside [emoji24][emoji24][emoji24]

 

[saltyfilmfolks]

Well I puffed a turkey baster at him and he blew over and is empty inside [emoji24][emoji24][emoji24]

I'd bet it was a sand. clam.

Mine did that too.