Any ideas what this is?

[Azzaman160]

HI, I've only had a marine aquarium for about 6-8 weeks now, but whats this living in my live rock please?

 

[Cell]

Pic

 

[Azzaman160]

Pic

Sorry I did add a video with the post so don't know where that's gone, I'll try again.

 

[Azzaman160]

Sorry I did add a video with the post so don't know where that's gone, I'll try again.

It won't let me.add the video sorry.

 

[dbl]

Best the add your video to YouTube or other video outlet and then provide a link here to the site.

 

[sixty_reefer]

Most probably a sipunculid worm

 

[Anthrax15]

Peanut worm

 

[Azzaman160]

Thanks everyone, looking into it after your suggestions then some form of peanut worm seems most likely, they seem safe enough and as he's way to quick to catch (it retracts into itself Into a hole In the live rock), I guess ill have to leave him to it.