Black sponge ID?

[joefishtank]

I bought a frag with some smooth soft black ovals. I think they are a slow spreading type of sponge but I have no idea.

 

[homer1475]

Looks to be bubble algae to me. Is it soft or hard?

 

[RedoubtReef]

looks like regular 'ol black sponge to me.

 

[joefishtank]

Looks to be bubble algae to me. Is it soft or hard?

It's soft and slimy. I actually have bubble algae this is something different.