Need help with a couple of IDs

GregK

New member
I've had my nanoreef setup for about three months now, and I'm continuing to find new things appearing from the TBS package I bought. Some of the stuff I can recognize, others I can't. Here are some pictures of a couple of things I've found lately but don't know what they are.

The first picture is of something I found just today. It looks like it may be some kind of worm (I've got plenty of those in the tank), but none I've seen so far look anything like this guy. He's about an inch and a half long, and I found him swimming freely out in the refugium (he had apparently gotten sucked through the pump and ended up back there). The filters along his sides go from almost transparent white at the front of a vibrant red at the back. Any ideas?
unknown_worm.jpg


These next few pictures are of a couple of things my wife and I found a couple of weeks ago. They seem to live down inside the rock. I say "they" because there appear to be two of them although I guess they could be two openings of one creature. The pictures aren't real clear, sorry about that. I've circled the two openings in each picture to make them stand out more. From each opening, a rim extends out maybe a half inch or so. The creature retracts this rim back into the hole when it gets startled thus closing the hole. In the first picture, both holes are fully opened and you can see down in there that there is a pretty sizable cavity inside.
unknown_feeders_id_1.jpg


This next picture shows the holes partially closed. I think my movements startled it and caused each of them to close.
unknown_feeders_id_3.jpg


The final picture is just another shot of them partially opened again.
unknown_feeders_id_2.jpg


Any help would be appreciated!
 
1st one is a bristleworm. They are good. So put them back in your tank. Depending on how much detrious is in your suystem the population may be large or small. So they are good. The second picture looks like a barnacle.
 
1st one is a bristle worm. They are good. So put them back in your tank. Depending on how much detrious is in your system the population may be large or small. So they are good. The second picture looks like a barnacle.
 
1st one is a bristle worm. They are good. So put them back in your tank. Depending on how much detrious is in your system the population may be large or small. So they are good. The second picture is a turkey mussel.
 
the other photos are a kind of Clam or mussle.

hard to tell but thats what they are...

two holes one for pumping water in the other out.

thats how they filter feed.
 
Thanks for the help guys. Anyone know of a site that has a lot of pictures of mussles so I can try to id the exact kind I've got. Not sure if that is possible or not, but it would be nice to figure out.
 
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Registered: Dec 2006
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1st one is a bristle worm. They are good. So put them back in your tank. Depending on how much detrious is in your system the population may be large or small.


Will the population be hi with a lot of detrious or will it be lower with a lot of detrious.

Roger
 
The bristle worms will come and go depending on how much food is available in the tank for them. They don't bother anyone really that I see.
 
Yep, the first picture is a bristle worm I agree. The second, not sure if it is a clam or mussel but I do agree it is some type of filter feeder. I see new life in my tank everytime I look at it courtesy of TBS.
 
I have several of the second picture in my tank. They are cool some are real small so look real close at your rock they are hard to see then they pop right out. I decided they were a type of mussel but one is about 1 1/2" wide.

Art
 
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