Hitch hiker crab ID

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Hi guys,
Came across this guy obviously coming in on live rock purchased at my local.
Just wondering what it is and if I should remove?
I'm located in Australia.
Cheers

20260201_153922.jpg 20260201_153914.jpg
 
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I have these in my tank, their claws are similarily shaped to Emerald Crabs but I get them as hitchhikers from Indo live rock. I've never removed them and only ever seen them eat algae.
 
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