Please help ID

[AlexChef]

I'm thinking tube worm not sure they're all over all my rocks however.

 

[themcnertney]

Sponge maybe

 

[DustyXB9Reefer]

Looks like some kind of sponge to me too.

 

[KJ]

A+ sponge.

 

[Tahoe61]

Sponge as posted and harmless.

 

[AlexChef]

Thanks everyone! Does this sponge bring any benefit? I only ask because it is a little unsightly.

 

[Iptuous]

Those look neat! Id worry about the gha.

 

[Wam]

Had it in my last tank kind of a pain it breaks off and floats around.

 

[AlexChef]

Those look neat! Id worry about the gha.

GHA?

 

[AlexChef]

GHA?

Never mind got it