Aiptasia? ID please...

[Soju]

It looks very similar to aiptasia but it lives in a black tube, like a tubeworm and the color is really darker compared to the real aiptasias I've seen over the years.
I have about 5 of them on a small piece of LR and they all come out from their tube.

Should I play it safe and take them out now to avoid possible headache later?

http://i1266.photobucket.com/albums/jj535/soju528/ab6ad773.jpg

[BubbaBoBobBrain]

I have never seen those before but I like to play it safe. I would throw it out, especially if they are all on a small piece of rock.

[BfishLpond78]

Any chance of a clearer picture?

[gmate]

Almost looks like black dendros...are you sure it's a worm? Can you get a better pic? I'd be very interested to see.

[Soju]

It's not a worm. I meant to say it comes out of a tube(branch kind of tube)
I've looked at some images of dendros after reading you post. It does look like a dendro with an aiptasia-like looking polyp.. Hmmm
I will try to get a better pic in about an hour. I am at BJs.

[Soju]

Only one small polyp is opened now.
The black spot is where the aiptasia-looking polys come out.

http://i1266.photobucket.com/albums/jj535/soju528/754648b5.jpg

http://i1266.photobucket.com/albums/jj535/soju528/3a555eb2.jpg

[SushiGirl]

The black looks like black sponge to me.

[Useful_Idiot]

Wanna sell em? I'll take them. black sun corals maybe?