Feather duster?

[TK_KW]

Is this a feather duster sticking out of the side of my favia colony? It pops out every now and then. Good or bad?

 

[FishyDP]

Looks like a feather duster- good guy.

 

[andrewkw]

Yes it is. They are filter feeders and can multiply but that’s really only an issue if you don’t like them. It’s very unlikely they will reach plague levels and some fish may eat them.

 

[TK_KW]

Ok,thanks guys

 

[ScottR]

I’ve got one in my favia too. I just left it there. I’ve seen them grow between acan heads before as well.