What is this?

[sUSAnR]

Hello, all!
We got some hammer corals about 6 weeks ago and this one has this white thing on it. It was closer to the top when we got it- but now it seems to be falling off.
Should I leave it alone? Remove the white piece?
Any advice welcome.
Thanks!
-Susan

 

[vetteguy53081]

Hello, all!
We got some hammer corals about 6 weeks ago and this one has this white thing on it. It was closer to the top when we got it- but now it seems to be falling off.
Should I leave it alone? Remove the white piece?
Any advice welcome.
Thanks!
-Susan

Yes, leave it be and eventually remove as often they inherit sponge and in time the sponge will dislodge in which it appears to be sponge. Remove it when you can.