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?
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.
This next picture shows the holes partially closed. I think my movements startled it and caused each of them to close.
The final picture is just another shot of them partially opened again.
Any help would be appreciated!
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?

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.

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

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

Any help would be appreciated!