Clam? any ideas

[brendan1495]

A small golden mussel like critter apeared on my rock a couple of days ago
would display pick but cant seem to do it.

Brendan

 

[Jaybird]

I'd love to help but without a picture it's really hard to know what is there.

 

[brendan1495]

Think ive sussed the picture thing has anyone any ideas what this is, been roaming my live rock for about 4 days just turned up.

Cheers for any help

Brendan

 

[brendan1495]

Anyone any ideas ?

 

[Ziggy953]

Looks like a common clam to me. Nothing to worry about, they are filter feeders and will just add to your system.