What am I?

kay-bee

AC Members
Sep 14, 2005
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Tampa, FL
I acquired this creature from an LFS for free (who just wanted to get rid of it), dubbed "the mushroom of death" because it has killed and consumed everything it has comes in contact with (several fish 2"-3" fish, a large feather duster and was even seen expelling a plumb-sized (and digested) sea urchin. I think it produced a casualty or two in the original owner's tank (who had acquired it from another source, he received it when he ordered a bulb tipped anemone, which this thing is not and gave it to the second LFS).

It's believed to be a mushroom of some type with strong anemone qualities or some sort of species which falls between mushrooms and anemones and is in excess of 4 inches in diameter (the 'stalk' is at least 3" thick) and packs a powerful sting. It is stationary and wasn't mobile during its month stay at the 2nd LFS. Any idea on what this "mushroom of death" actually is? (I'm keeping it in a 20gal containing excess anthelia and a couple of hermit crabs):

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I'm kind of scared about a LFS who would confuse a Anemone for a Mushroom. lol
 
From what I understand mushrooms are a close relative to anemones (and are sometimes referred to as 'mushroom anemones', I'm not sure if that is a kind of 'common name', though); they both belong to the same sub-class but different Orders. But yeah this one definately has strong predatory traits.
 
The species of mushroom called Heliofungia Actiniaria is actually confused with an anemone quite often, there are a good few which look very much the same..

heliofungia actiniaria is not really what any hobbyists would call a type of "mushroom". It's more commonly known as a long tentical plate coral and it considered a type of LPS. That being said, the above picture definatly isnt one. It obviously has some type of soft foot. Off the top of my head, i'm not sure what species it is, but i would definatly say it is a type of anemone. and from the sound of it, a hungry one at that :)
 
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