Can anyone id this?

[Waco Pilot]

Can anyone tell me what this strange polyp is growing on my blue Zoas? (Right side of photo growing off the Zoa plug) Is this what they call a snake polyp? It is quite colorful and is generally only open at night.

 

[Sushi man]

Whoa, thats freaky looking !!!

 

[650-IS350]

Snake Polyp.

 

[Waco Pilot]

Cool... thanks... we thought that's what it might be but wanted to defer to the experts!