Please help with ID

[JJMS86]

Hi guys!
Just wondering if anyone has any idea what this might be growing on my LR? Took extra close up pics, so hopefully we can figure it out this time. Because recently the Blue Xenia attached to this same rock (close to where this " unidentified green button type" thing is) is receding. Blue Xenia has been doing great in tank, until about two weeks ago, not opening fully in one section, receding etc...
All parameters have been as stated in my profile (normal) as I keep a very balanced tank, by not having too much livestock...
BTW, the "freckles" are going away/fading on my clown. He never got sick or exhibited any other signs of stress, so def don't think it was black ich.
Thanks for the help with the ID !!

 

[Sniperhank]

How about Button Coral, Cynarina
Button Coral, Scolymia

 

[54seaweed]

looks like a shroom to me

 

[Bonessurf]

Trachyphillia or lobophyllia maybe? Or an unimpressive skully. It should have a hard base. Feed it meaty foods. He'll grow nice for ya. Good find.

 

[CaptainJugz]

Looks to me like a cup coral with feeding polyps extended. Mine extend fully when tank has zero light. Try turning off the lights completely and see if it "transforms"...

 

[JJMS86]

Trachyphillia or lobophyllia maybe? Or an unimpressive skully. It should have a hard base. Feed it meaty foods. He'll grow nice for ya. Good find.

Thanks for trying to ID my photo...I looked online at the first two corals you suggested, but I don't believe it is either of those. However, what is a skully? Is that a nickname ?

 

[JJMS86]

Looks to me like a cup coral with feeding polyps extended. Mine extend fully when tank has zero light. Try turning off the lights completely and see if it "transforms"...

Thanks for trying to help with the ID, however, at night, mine shrinks up to almost nothing, no polyps extended at all.

 

[spoonman]

Looks like possibly an acan?

 

[Flreefer]

+1 to Bonesurf, looks like a Trachyphilia with its feeding tentacles extended, or a Scolymia.

 

[spoonman]

Here is a picture of my acans in my 29 reef. Looks just like it to me.