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ACE
Tue, 26th Aug 2008, 09:31 PM
I have these "things" on some of my rocks. I was told they may be "Hydroids", but they do not seem to look like the pictures of hydroids I researched. Has anyone ever seen these before?

http://i281.photobucket.com/albums/kk209/elecbzerk/Fish/08252008023.jpg


http://i281.photobucket.com/albums/kk209/elecbzerk/Fish/08252008024.jpg


http://i281.photobucket.com/albums/kk209/elecbzerk/Fish/08252008025.jpg


Thanks for your help.
dustint21
Tue, 26th Aug 2008, 09:48 PM
I have some as well! I thought they were aptasia when I first saw them, but they have a hard tube!
ACE
Tue, 26th Aug 2008, 10:48 PM
I have some as well! I thought they were aptasia when I first saw them, but they have a hard tube!

yeah, the "tube" destroys easily, seems fragile when touched. I'm worried about spreading them that way though. I guess no one has seen these before.
dustint21
Tue, 26th Aug 2008, 11:01 PM
They have been in my tank for about 3 months without any noticable spread!
swjim
Tue, 26th Aug 2008, 11:29 PM
They look like fan worms to me, if so, they're good little filter feeders.
stoneroller
Tue, 26th Aug 2008, 11:30 PM
I have them too, don't seem to spread or cause any harm, atm.
hobogato
Wed, 27th Aug 2008, 07:11 AM
not sure what they are either.... i used to think they were hydroids when they first appeared in my tank, but they dont spread and take over like some say hydroids do. mine have not caused any problems.
swjim
Wed, 27th Aug 2008, 01:57 PM
Does this help? http://www.reefs.org/hhfaq/worms/photoalbum_photo_view?b_start=6
dustint21
Wed, 27th Aug 2008, 02:20 PM
I dont not think they are feather dusters. I have alot of feather dusters on other rocks and they dont seem to be the same!
swjim
Wed, 27th Aug 2008, 02:58 PM
There is a lot of variation in size and color in the family, I have some that appear very similar to these as well as some that have different color tubes and crowns. I believe they are all annelids, but I could be mistaken.
dustint21
Wed, 27th Aug 2008, 04:49 PM
The crowns do not suck into the tubes when you touch or get near them like the rest of my feather dusters!
ACE
Wed, 27th Aug 2008, 09:51 PM
thanks for everyone's help! Still not sure what they are, but i do agree that they seem not to be spreading fast. (knocking on wood) they aren't very easy on the eyes though....