Crab ID Help

Goonsack Steve

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Caught this crab after I found him eating my dead Mandarin this morning.

Is about the size of my finger nail and originally hitch hiked on a Ricordea about 2 months ago.

20250902_223918.jpg

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Is it a gorilla crab? If so, is it cruel releasing it into the ocean? I have a place with lots of Rock work I can drop it.

I don't think sump prison is an option on my tank as I have an AIO.
 
Bump
 
Looks like maybe a decorator crab with the heart shaped carapace. Has it carried anything on top of itself? I don’t think they are reef safe but I’m not 100% sure on that. One of our residents crab experts may have a more definitive idea. If it ends up it’s a gorilla crab, get it out of there!!
 
Looks like maybe a decorator crab with the heart shaped carapace. Has it carried anything on top of itself? I don’t think they are reef safe but I’m not 100% sure on that. One of our residents crab experts may have a more definitive idea. If it ends up it’s a gorilla crab, get it out of there!!
Definitely haven't seen it carry anything. Any idea if crabs can even be put in the back of AIO tanks?
 
I’ve never heard of that. I’d think most AIO are too small and don’t have a flow line a sump. I’m definitely curious to see what our ReefSquad says! I know gorilla crabs are known hitchhikers so since it does wear anything maybe that’s it. This is the I’m following, waving the white flag, because I give up! 😂
 
Typically fuzzy ones get thrown into gorilla category lol.. I’m not sure what kind of crab that is but when in doubt toss it out!
 
Typically fuzzy ones get thrown into gorilla category lol.. I’m not sure what kind of crab that is but when in doubt toss it out!
I want a neon sign above my tank that says, "When in doubt, toss it out".
That's epic!
Window Throwing GIF by Adult Swim
 
Hopefully you'll get an answer, but I agree with the above. Re-home it and get a more reef safe crab if you want one in your tank. Im really sorry about the mandarin buddy. That always hurts
 
Took another photo as I have him in the feeding port for tonight while I work out what to do with him.

20250902_231818.jpg


Let me know what you guys think
This is a zanthid crab , may be a gorilla and very least desired- Discard
 
So after being caught dragging poor Gizmo into his hideout in my tank, and great effort by me, Mr. Krabs was sentenced to exile in the local Broadwater here on the Gold Coast after a Jury of fellow reefers deemed he was upto no good.



So long little guy, enjoy freedom.
 
So after being caught dragging poor Gizmo into his hideout in my tank, and great effort by me, Mr. Krabs was sentenced to exile in the local Broadwater here on the Gold Coast after a Jury of fellow reefers deemed he was upto no good.



So long little guy, enjoy freedom.
Exile!!!!
 

WHICH KIND OF INVERT HAS CAUSED THE MOST MISCHIEF IN YOUR TANK?

  • Sea urchins

    Votes: 15 23.1%
  • Hermit crabs

    Votes: 11 16.9%
  • Other crabs

    Votes: 4 6.2%
  • Shrimp

    Votes: 5 7.7%
  • Snails or conchs

    Votes: 3 4.6%
  • Sea stars

    Votes: 0 0.0%
  • Anemones

    Votes: 12 18.5%
  • None! My inverts are model citizens. :-)

    Votes: 11 16.9%
  • Something else (tell us in the comments)

    Votes: 4 6.2%
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