Hammer coral

[beardedjack]

This Hammer has been in my tank a few weeks but the base looks weird. Does anyone know what this might be. It is hard and doesn’t blow off.

 

[KrisReef]

Almost looks like it was fragged, the skeleton cracked and someone put a "cast" of epoxy putty over the break to hold the skeleton in place until it healed?

Otherwise, if it isn't a sponge then I have no other guesses at what I am looking at.

 

[beardedjack]

Almost looks like it was fragged, the skeleton cracked and someone put a "cast" of epoxy putty over the break to hold the skeleton in place until it healed?

Otherwise, if it isn't a sponge then I have no other guesses at what I am looking at.

I was thinking could be epoxy but not 100. Figured it was way to hard to be a sponge literally feels like a rock.