Tank pest or beneficial helper?

bennyb

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Hey all, I just bought a few pieces of mature coral, and noticed this little guy a few days later. Definitely a stowaway from one of those pieces. I’ve been monitoring him, and does not seem like he is harming anything, but want to make sure! I am new to this, and would gladly take any identification help. Thanks!

IMG_2099.jpeg IMG_2100.jpeg
 

Pickle_soup

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With hitchhikers look at the pinchers. Those are for tearing tissue. This is definitely a resident of the sump.
 

ISpeakForTheSeas

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Any chance of a clear, top-down shot of the full critter under white lighting?

As is, I would guess a squat lobster of some variety as well - I haven't looked into them too much yet, but the ones I have looked at seem to be relatively small omnivores that seem to scavenge rather than hunt.
 

bushdoc

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Judging from response here and my lifetime experience, I would say:
"One man pest is another man beneficial helper"
The question is: Which man are you?
 
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bennyb

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Judging from response here and my lifetime experience, I would say:
"One man pest is another man beneficial helper"
The question is: Which man are you?
Overall, I just want to make sure it’s not going to outright attack all the inverts or fish or corals.
 

Making themselves at home: Have you intentionally done anything in your aquarium to enhance the natural behavior of your fish?

  • I planned my tank to encourage natural fish behavior.

    Votes: 17 29.3%
  • I did some things to encourage natural fish behavior.

    Votes: 21 36.2%
  • Anything that encourages natural fish behavior was a byproduct of the aquascaping.

    Votes: 13 22.4%
  • I did not do anything to encourage natural fish behavior.

    Votes: 5 8.6%
  • Other.

    Votes: 2 3.4%
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