Not sure what this is

[Shintaylor]

Hello, have been a lurker for some time now and just wanted to see if this looks like something I should be concerned about. Not sure what this is. Looks like it’s growing on the bottom side of my live rock. It is coming out of the white looking veins of my rock.

 

[Jekyl]

Have some white light photos?

 

[Cthulukelele]

Look like feather dusters but white light would help

 

[Jekyl]

Look like feather dusters but white light would help

Thought the same

 

[Cthulukelele]

If micro feather dusters they're harmless filter feeders that regularly spread in our tanks and help soak up nutrients/particulate in the water column