Hitchhiker on Zoa ID please

[Bimberella]

 

[fishguy242]

hi,think type oyster,bivalve? bonus filter feeder

 

[SHNICI]

+1 oysted, but I think it's dead (probably) and covered with sponge
Can't find any clam/bivalve/oyster which is that snow like (completely) white.

 

[fishguy242]

does it open and close if touched?

 

[SHNICI]

does it open and close if touched?

yep, that's the question I miss and forgot to ask

 

[Bimberella]

Well, it opens and closes all the time

 

[Bimberella]

So... I've checked and the pure white is very much alive if reacting to touch means its alive.... as is the other colourful thingummy. .. there's also a teeny thing that says in and out of a hole and opens and closes.... so all alive.... but what are they?;Pompus;Nailbiting

 

[fishguy242]

hi,not sure smaller one ,believe in same catagory,had them,no worries ,type barnacle?type oyster? safe not invasive