i.d. please

[steve_58]

Can anyone tell me what this is? Also what the coral is ? I got this rock in some ruble rock about 6-8 months ago and about a week or so after I put it in my tank the coral came out of it.Then a few weeks ago two of these tube things appeared growing out of the coral.The rock is 3 1/2-4 inches across. I am thinking maybe a type of encrusting goniapora but not sure and no idea what the tube things are..They do grab and feed on the frozen brine shrimp I feed the fish and anemones.

 

[94Roarge]

The coral almost looks like a galaxy(?) Coral to me

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[pagojoe]

Hard to be sure from the single pic, but looks like it might be a Serpulorbis.