What is this thing?

[Aumming]

Lights just turned on so the torch is closed but it doesn't seem to have a problem with it. The pest flexes open and closed so is it some type of weird clam?

 

[GlassMunky]

Colonial Tunicates I think

 

[WV Reefer]

Lights just turned on so the torch is closed but it doesn't seem to have a problem with it. The pest flexes open and closed so is it some type of weird clam?

some type of bivalve...... I have a large one on my Frogspawn skeleton. Very cool

 

[Dabcrusher]

i had one on a bubble coral and did alot of looking to figure out what it was i believe its a type of mussle or scallop