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Discussion Starter · #3 ·
A less blurry picture would help...does it move or retract?
I'd love to get a less blurry photo but it's pretty small, and I have to zoom way in to even get the shot. Here is a video of it:

https://youtu.be/aUVINz0U4IY

To me it looks like a crab. It does not extend and retract like a coral would but it will stick itself partially out of the hole in the live rock and if I move too close it will shoot back inside.
 

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Discussion Starter · #5 ·
I'll see if I can get better pictures later. To me it looks like an emerald crab except white. And considerably smaller.
 

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Discussion Starter · #7 ·
It certainly is a crab of some sort. Searched and found this - https://www.saltwaterfish.com/product-anemone-crab-white

Or maybe if your a Harry Potter fan - https://reefbuilders.com/2017/02/15/harry-potter-reef-crab/

Also, from my search I noted people say if it has red eyes and black tips on the claws it's BAD.
Both of those are smooth bodied where this one seems hairy. Honestly it looks closest to the "hairy crab" a ways down on this page.

http://www.xtalworld.com/Aquarium/hitchfaq.htm

Evidently if the body is smooth and legs are hairy (like an emerald, mithrax crab) then it's probably safe. But if the body is hairy as well it's almost certainly bad. I think I need to fish out the bit of live rock it's on and try to get it out where it can live in my sump for a bit until I can identify it.
 

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Gorilla crab? I take these guys off of frags all the time. Some companies started growing frags and culturing "live" rock naturally in the ocean to keep costs down. The downside to this is that you don't know what kind of hitchhikers you get.



 

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Hi. I just set-up my saltwater tank a few days ago with a dry rock and live rock. I just realized today that, what is called a hitchhiker was on the sand bed , a small black snail with spots. I don't believe it's alive. Should I remove it or leave it. Still waiting for tank to cycle. Not even close yet only 5 days into the whole process and and the live rock yesterday. Thanks
 

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Hi. I just set-up my saltwater tank a few days ago with a dry rock and live rock. I just realized today that, what is called a hitchhiker was on the sand bed , a small black snail with spots. I don't believe it's alive. Should I remove it or leave it. Still waiting for tank to cycle. Not even close yet only 5 days into the whole process and and the live rock yesterday. Thanks
Welcome to TRT, Drechi! For future reference, it's better to start your own thread with questions for your tank, that way you're sure to get answers directed to you and your issue. As far as the snail, just leave it - if your tank is cycling it might not make it if it's alive, and if its already dead it's just feeding the cycle.
 
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