Help identify

[Enzo3]

Can anyone help identify this it pops out of my live rock as a flat round brownish transparent fan but not sure what it is killed a few by picking at it with tweezers felt kind shell like

 

[Megability]

video doesn't play for me at least, says 0 seconds

 

[ISpeakForTheSeas]

The video plays for me. Some kind of bivalve (clam, oyster, scallop, etc.), perhaps? I'm not sure if you're showing one or two in the video, but the way the first one that shows up moves seems like the opening and closing of a bivalve to me.

Edit: to clarify, if it's a bivalve, then it's a harmless filter feeder.

 

[Enzo3]

video doesn't play for me at least, says 0 seconds

 

[Enzo3]

The video plays for me. Some kind of bivalve (clam, oyster, scallop, etc.), perhaps? I'm not sure if you're showing one or two in the video, but the way the first one that shows up moves seems like the opening and closing of a bivalve to me.

Just showing one its really flat and just swaying back and forth in the live rock is it something tk be concerned about

 

[ISpeakForTheSeas]

Just showing one its really flat and just swaying back and forth in the live rock is it something tk be concerned about

If it's a bivalve, definitely not. If it isn't a bivalve then maybe, but I'd guess no. Generally, with stuff like this (i.e. with things that aren't actively stinging or roaming/hunting things) you just need to worry about it spreading and overtaking your corals. I'm not entirely sure what you've got growing there, but I highly doubt that it's going to start overtaking your corals at any point. So, I'd guess it's perfectly harmless.

 

[Enzo3]

If it's a bivalve, definitely not. If it isn't a bivalve then maybe, but I'd guess no. Generally, with stuff like this (i.e. with things that aren't actively stinging or roaming/hunting things) you just need to worry about it spreading and overtaking your corals. I'm not entirely sure what you've got growing there, but I highly doubt that it's going to start overtaking your corals at any point. So, I'd guess it's perfectly harmless.

Thanks Thanks the response my nems did a great job of cleaning off my corals so I don't have many left

 

[Reefer Reboot]

Looks like a snail operculum stuck in the rocks being blown by the current.