ID Please - Mystery Clam-esque Creature on Live Rock

sl01

New member
Hey guys, I just noticed this mysterious creature today on my live rock. It's about the size of a dime, maybe a little smaller. It opens and closes periodically, when closed it looks like a tiny flat clam, when open there is webbing between the top and bottom.

165442IMG_5594.jpg


Anyone know what it is?

Thanks in advance

--SL01
 

DNickell

New member
Just bumping you up. I don't know what that is, but I've got something that looks similar at the base of a Pagoda coral. I've been watching it for a few months now. No change and no apparent harm. It is mostly hidden from view but it doesn't appear to be harming anything. The Pagoda looks happy.
 

ILoveReefer

Premium Member
It's a clam. They come in on LR as hitchhikers all the time. What species of clam I don't know, but they are just harmless filter feeders.
 

pagojoe

Team RC
Looks really thin when it's closed, I'm pretty sure it's a Pearl Oyster (Pinctada species) rather than a clam. There are several that look similar to yours. Again, it should be harmless in your tank.

Cheers,



Don
 
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