Can anyone identify this coral

[ifyouknew62]

Hi. We have this "coral" growing. Does anyone know what it is". It's the one next to the green cabbage.
Thanks

 

[C.Eymann]

Are you referring to the sponge ?(upper left of green cabbage) or what looks like maybe Clavularia/ clove polyps? (immediate left) The pic is a bit low resolution to tell.

 

[ifyouknew62]

Not the polyps. The one on the same rock as the cabbage. It reminds me of a bee hive.
It started as one small white area with a hole. Not as you can see it has several holes. I just have no idea of what it is.

 

[C.Eymann]

Again pic isn't terribly clear but it looks like a sponge to me

Look kinda like this??

 

[AlSimmons]

How does it feel to the touch? You should be able to tell right away if it's a sponge or not.

 

[ifyouknew62]

It does look like th picture.
And it feels, sort of soft .

 

[rt67ghy]

It's a sponge.