Trying to iD

[Digicop]

I am trying to identify these brown items growing on a live rock I just obtained. The live rock has a red mushroom that I want. If the other items or bad can I remove the red mushroom without killing it?

 

[Softhammer]

Looks like a re emergence of star polyps, will probably turn green on you but there are brown varieties.

 

[nanonøkk]

they look kinda like a clove polyp or a green star polyp without much of the green i hope this helps figuring out what it is

 

[reefer7891]

If there’s a purplish mat that looks attached to the rock then it’s a green star.