Test for the best of you !

[Mamaroneck]

Here are the best pictures of a 3 years old hitchhiker that nobody has identified yet...

It is 5" wide, about 5" tall, clearly eat mysis shrimps and is simply beautifull :

WHAT IS IT ?

 

[marrone]

It looks like a Fire Anemone, especially the tentacles.

Check out the pictures on this site and see if any match up.
http://www.nhm.ku.edu/inverts/adorian/actinodendronidae.htm

 

[Mamaroneck]

You guys are good !

Yes it does look from the same family as the pictures on the link, especially Actinodendron Plumosun, but their picture is not so good. Mine as probably more than 60 tentacles, of various sizes and is very agile...

close will check further !

 

[marrone]

I've seen some really large ones in the past, some which have taken up almost half a 20gal tank. They also pack a pretty powerful sting. A large one touched my arm for about 5 sec and left it all blistered.

 

[Mamaroneck]

good to know...!

As it has settle at the back corner of my tank I never get to touch it...
Doesn't seem to bother the fishes though...

it is 5" wide now but doesn't seem to grow anymore !

 

[Mamaroneck]

Plumosun

Looks clearly from the Branching anemones family, the closest being Actinodendron Plumosun...not quite that but haven't found a closer picture on the web...

Thanks guys