Clam on live rock?

[nanoman95]

Hi all

Tank is swarming with copepods and this weekend I finally get to add a fish (still deciding on the first tank mate!) I saw this weird clam like shell on the live rock. Any ideas what this is? I did think it was a clam or some kind of mollusc but kind of can’t believe that! Any ideas are greatly appreciated!

 

[Timfish]

I can't see specifically what you are talking about but I find clams on maricultured live rock all the time. There's several Caribbean species that will show up regularly on stuff from Florida suppliers.

 

[jda]

I cannot see it either, but there are filter feeders can can do quite well in aquarium setting if established and the no3 and po4 do not get too high.