Need ID

[mozz]

Can anybody ID this thing underneath my Brain Coral? Is it safe?
Thanks
mozz

 

[TripleT]

Looks like a tunicate. A few of them actually.

 

[mozz]

Are they safe? There's a bunch growing inside my skimmer, too.

 

[mscarpena]

I also see some pineapple sponges. Wow nice brain and none of them are harmful

 

[mozz]

Thanks
mozz

 

[GerritM]

Hi!
Yes harmless, probably Sycon sp. and a Clathrina coriacea.