What is this? coral?

[nickloeuf]

Hey there,

I just noticed this little thing moving on my rock cuz of the waves... i would like to know what is it ? is it a coral? anything else?

here's a link to a video

http://sendvid.com/d2thhex6

and here's a picture ( really hard to take a pic of this btw, sorry for the quality)

Hope to hear from anyone soon, thanks!

 

[Tahoe61]

Looks like a harmless sponge.

 

[nickloeuf]

Looks like a harmless sponge.

Oh alright thanks a lot !!

 

[cowboy]

Agreed the beginning of a sponge