That thread explains what it is.
I've found all kinds of stuff over the years. This was a very odd one, and I never did see the source of it:
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http://www.melevsreef.com/id/tendril.html">http://www.melevsreef.com/id/tendril.html</a>
I found a Peppermint Snail too:
[IMG]http://www.melevsreef.com/id/peppermint_snail.jpg alt="" />
http://www.melevsreef.com/id/peppermint_snail.html">http://www.melevsreef.com/id/peppermint_snail.html</a>
I recently found this horrible worm:
[IMG]http://melevsreef.com/pics/08/06/badworm_2.jpg alt="" />
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It eats snails and clams. I've captured three so far from my reef, and they are all at least 8 to 10" long, if not longer.
I found this in my Caulerpa:
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http://www.melevsreef.com/id/sacoglossa.html">http://www.melevsreef.com/id/sacoglossa.html</a>
I found this in my overflow:
[IMG]http://www.melevsreef.com/id/other/lg_flatworm2.jpg alt="" />
http://www.melevsreef.com/id/lg_flatworm.html">http://www.melevsreef.com/id/lg_flatworm.html</a>
I found these on my Tyree A. valida (AEFW)
[IMG]http://www.melevsreef.com/id/aefw.jpg alt="" />
http://www.melevsreef.com/aefw.html">http://www.melevsreef.com/aefw.html</a>
Those are just a few I've seen. Oh, and one night I saw these cute tiny angels swimming in my tank:
[IMG]http://www.melevsreef.com/video/lil_angels.wmv">http://www.melevsreef.com/video/lil_angels.wmv</a>
Turns out they were Peppermint Shrimp babies!