Aiptasia or Hydroid polyps?

[Snooker00]

Surely someone here can identify these things. They don't look like aiptasia but I can't find a pic of them anywhere. Please, can somebody tell me what they are?
1st pic is while it was all by its self,
2nd pic is a month later.
O.K. I am begging now!

Thanks in advance.
Steve

1st

2nd

 

[seamommie]

I've got the same thing in my tank. I was told they are hydroids. How do you get rid of them? They spread like crazy.

 

[Snooker00]

I don't know how to get rid of them, but your right they do spread like crazy. Anybody else have a clue on what they are or what to do about them?

Thanks,
Steve

 

[Snooker00]

Nobody has any ideas????

 

[AllenFord_SC]

Not sure it is a hydroid.

Here is a pic of a hydroid:

Appears to me to be some sort of tube worm.

Also, this is more than likely wrong, but it looks similar to Scypha ciliata.
But I am just throwing things out there.

 

[AllenFord_SC]

Oops here is the picture.

http://scilib.ucsd.edu/sio/nsf/fguide/cnidaria24.html

 

[One Eyed Bunny]

I'm pretty sure they're not aipstasia. Aipstasia, at least from my knowledge, have visible tentacles and 8 of them.

 

[GMGQ]

Yes I have those fuzzy things on some of my LR too. They're dark green, and are sort of fluorescent at night.

 

[seamommie]

AllenFord-SC - Thanks for the help. Based on your info it doesn't appear to be a hydroid.

What is a Scypha ciliata and do you have a pic? TIA.

 

[AllenFord_SC]

Like I said though, I'm sure I'm wrong but I tried. You may want to do an image search on googl for tube worms.

 

[Snooker00]

Thanks Allenford,
According to the google search that I did says that the Scypha ciliate is a sponge,

and it definately isn't the hydroid pic. It has tentacles that sway in the current and if it was a worm wouldn't it retract into the rock when touched?

I don't have a clue but it is definately driving me crazy!!
Thanks for everybodys help so far. Now I am on a mission!
Maybe LesileH might know if it is a worm?

Thanks again,
Steve

 

[AllenFord_SC]

Ok one last shot, and I think I'm right this time. Smaller variation of a feather duster.

Branchiomma cf. curtum

This tiny species was first described in aquarium literature by Fossa and Nilsen (2000). It is a common inhabitant of reef aquariums that is introduced with live rock, live corals, algae, or other substrates. It reproduces prolifically in sumps, refugia, and all over live rock and among algae. Aquarists who first see this species often mistake it for small Sabellastarte, because it has a similarly patterned crown. Reports of mass reproduction of Sabellastarte in aquariums are generally due to misidentification of Branchiomma.

This all was taken from this article.
http://www.advancedaquarist.com/issues/aug2002/invert.htm

And I then googled Sabellastarte and got this article.
http://species.fishindex.com/species_2507sabellastarte_magnifica_feather_duster.html

So I think thats what you have, Branchiomma curtum

 

[Snooker00]

AllenFord_SC, Thanks for all the time you have put into helping me I.D. these things. I looked and read the links you posted and checked out the pics.... but I don't think they are worms. I am going to have to get a macro lens for my camera because the pics I posted really don't give the look of real life. I have been searching on google for a while under different life forms and honestly this is the closest I have been able to find that resembles the critters, So far, still looking!
White creeping anemone (Parazoanthus anguicomus) on rock.

We'll find this thing, because I need to know for sure. Good or Bad
The other thing about them is they don't seem to get any bigger they just multiply.
Thanks again,
Steve

 

[mejiggery]

first off let me start by saying i'm no expert lol. but i have what i've always called hydroids that look very similar but they have a hard base to them, yours seem to have an actual soft foot so i'd go with some type of anemone. Either way a good dose of joes juice will get rid of them.