halostar9

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Hello, everyone,

I am a newbie to the saltwater hobby but am learning so much. I have a 29 gallon tank with live rock that we have had up and running for about 3 and 1/2 weeks. We recently acquired some really good live rock from a private party that had a tank for about 10 years and previous to that we purchased some live rock. We just noticed yesterday that we had a crab of some sort that hid down inside of a hole inside the rock. I have check so many online marine stores and google images to find out what type of crab this is to determine if it might be a future threat or not. However, I cannot find it anywhere! I have seen photos that are similar but none is an exact match. I have noticed that the crab seems to like to hide a lot and not like the light so much.

Can anyone identify this one?

Attached Images

	Crab 1.jpg (51.6 KB, 4 views)
	Crab 2.jpg (69.7 KB, 6 views)
	Crab 3.jpg (60.2 KB, 4 views)
	Crab 4.jpg (25.8 KB, 3 views)
	Crab 5.jpg (31.7 KB, 3 views)

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halostar9

"Do not follow the ideas of others, but learn to listen to the voice within yourself." ~Zen Master Dogen~
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chase33

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I'm not sure but I'm sure others will chime in shortly. One thing about crabs though is it's better to be safe than sorry.

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twinreef

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I agree with chase. I would but him the fuge or

Deepwater

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rule of thumb ,

When in doubt , throw it out aka fuge or QT


did you get it as a hitch hiker?

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aquaman2000

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Feed it to a mantis shrimp.

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sadielynn

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It looks a bit like a rock crab , xthrid species , black claws lead me to say it is NOT reef safe and will be oppertunistic

halostar9

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It looks like you are right, Sadie Lynn. I think it is a rock crab. I took it out of the tank and think I will take it to the LFS. Thanks for the tips, everyone!

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halostar9

"Do not follow the ideas of others, but learn to listen to the voice within yourself." ~Zen Master Dogen~
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tales

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Looks like a fiddler crab (there are around 100 species)
There are over 6,000 known species of decapods, so it could be hard to ID them.

I agree with sadielynn most likely an opportunist.
I think you made the right choice by removing it.

Just my 2¢