Chalice dying?

[GHOSTLY]

So my chalice has started to develop a weird growth and I think it may be in trouble. Thoughts

 

[GHOSTLY]

Here is the spot

 

[zuri]

pan out what other coral are next to it, has any fish in the tank been using that spot to perch? take a flashlight at night and look a few times throughout the night

 

[Uncle99]

Mine have that as well.
But remain healthy.

 

[GHOSTLY]

pan out what other coral are next to it, has any fish in the tank been using that spot to perch? take a flashlight at night and look a few times throughout the night

Already have. Closest coral is 1 inch down and 4 inches tk the left and its a Yuma mushroom. I have no perching fish and ar nighttime only the usual trochus snail and astrea snails roam the tank aimlessly

 

[GHOSTLY]

This is the area

 

[fachatga]

I’ve had spots they look like some tissue regression in some chalices that go away. Maybe a snail rubbed hard against it. Once I had a large sand sifting starfish die on top of a large chalice and killed some of it. If evehtbjng is healthy it probably will just regrow. I wouldn’t get worried yet. See if it gets worse before I would do anything.

 

[GHOSTLY]

I’ve had spots they look like some tissue regression in some chalices that go away. Maybe a snail rubbed hard against it. Once I had a large sand sifting starfish die on top of a large chalice and killed some of it. If evehtbjng is healthy it probably will just regrow. I wouldn’t get worried yet. See if it gets worse before I would do anything.

If jt does recede how should I treat it