Please help ID.

[Annie Marie]

Hi! This just stared cropping up. Fauchea??

 

[Big G]

Is it leafy or is it more thick and roundish?

 

[themcnertney]

Appears to be a type of sponge I think.

 

[Big G]

Appears to be a type of sponge I think.

Yeah, that's what I was thinking if it's roundish; Fauchea is flat and leafy macro algae that's pretty rare.