mystery creature

[beefus]

This just happened in my tank that has been stable for months with no new additions, it's in the sandbed in the corner of my cube.

 

Any ideas?

 

Thank you.

 

BEEFUS

[RayWhisperer]

Looks very similar to a crinoid called a sea lilie. I really have no idea what you have there. It's a very interesting hitchhiker to have gotten.

[Nano sapiens]

Quite possibly the macro algae,  Acetabularia acetabulum:

 

 https://www.google.com/search?q=Acetabularia+acetabulum&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwj6t-LVw_XSAhVH3mMKHUqSDekQsAQIMQ&biw=1152&bih=590#imgrc=A9RhVj5l84KuZM:

 

 

 

 

[Weetabix7]

7 minutes ago, Nano sapiens said:

Quite possibly the macro algae,  Acetabularia acetabulum:

 

 https://www.google.com/search?q=Acetabularia+acetabulum&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwj6t-LVw_XSAhVH3mMKHUqSDekQsAQIMQ&biw=1152&bih=590#imgrc=A9RhVj5l84KuZM:

 

 

 

 

 

This is exactly what I was thinking. 

[gone_PHiSHin]

cool, I've never seen this type of macro before

[beefus]

I think you guys nailed it. It's for sale $1,000 PP message me for shipping details.

Aquarium Trade[edit]

Acetabularia species occasionally make their way into the aquarium trade. They are generally considered to be more difficult or unappealing macroalgae to care for in the reef aquarium, a fish-only, or a FOWLR (Fish Only With Live Rock) system, as they are delicate, readily eaten by herbivorous fish, grow slowly, and do not have the high nutrient uptake that reef aquarium refugium species (such as Chaetomorpha and Caulerpa) do. However, they are suitable for a macroalgae display tank, and thus macroalgae suppliers often carry species of Acetabularia."

[RayWhisperer]

54 minutes ago, Nano sapiens said:

Quite possibly the macro algae,  Acetabularia acetabulum:

 

 https://www.google.com/search?q=Acetabularia+acetabulum&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwj6t-LVw_XSAhVH3mMKHUqSDekQsAQIMQ&biw=1152&bih=590#imgrc=A9RhVj5l84KuZM:

 

 

 

 

Way to nail it. I never would have thought macro algae.