Green under my mushroom

[The_Barrs_Reef]

hey does anyone know what this geen mat/bubbles are on my muchroom, there to bright to be bubble algae and not see though at all, tried to get this best photos possible.

 

[vetteguy53081]

Looks like spomge or tunicates. Seeing the openings, i believe tunicates (pics a hair fuzzy)

 

[The_Barrs_Reef]

Looks like spomge or tunicates. Seeing the openings, i believe tunicates (pics a hair fuzzy)

Anything to be worried about?

 

[vetteguy53081]

Anything to be worried about?

No.
I dont like them but some people do. Theyre filter feeders