Mystery Clam Hitchhiker

[MasonK24]

i remember adding this as a frag years ago but it didnt have this little guy on it. im sure it came in on something i bought. anyone have any idea or if it could be cause for concern. thanks!

 

[itsken37]

muscle clam

 

[itsken37]

muscle clam

 

[MasonK24]

muscle clam

thanks!

 

[MasonK24]

so after some reading, they dont survive well in home aquariums but as i said in the first post this wasnt on the rock when introduced probably around 2 or so years ago and i havent added any coral in a year or more. dont know how this guy made it that long but thats cool. it has sort of a crosshatch rainbow pattern and i see it active open/closing to feed. very cool. hope he stays awhile. cheers to a healthy system.