Anyone tell me what this is now ?

[jerl77]

Having nothing but issues with this tank
What is this your think ?

 

[Dburr1014]

Having nothing but issues with this tank
What is this your think ?

No clue, is it white or pink?

 

[Reefkeepers Archive]

Looks like dead bubble algae on an acro

 

[jerl77]

It’s white and it’s hard as a rock

 

[Reefering1]

Post pic under white light

 

[Reefkeepers Archive]

It’s white and it’s hard as a rock

Dead acro skeleton probably?

 

[Tired]

Hard as a rock would say it's skeleton, yeah.

 

[shakacuz]

Dead acro skeleton probably?

does look like acro in certain areas, but the growth doesn’t match the JF fox flame growth pattern else where

 

[Reefkeepers Archive]

My other thought would be coral glue of some sort. @jerl77 did it used to be living tissue? Have any photos of it before it was there?