Little white/grey crab

Drakal

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Hi, saw this guy the other day, but can't catch him. Less than a centimeter at the moment.

4yb3.jpg
hk8y.jpg
jtww.jpg
x2ex.jpg



Found a mold few days later :

n68h.jpg
vbm5.jpg


I tried to ID him but can't found something that does really match


Looks bad ?
 
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madmarks

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I am not an expert by any means, but given the black-tip claws, the carapace shape and what looks to be hair in the close up picture of the molt , it maybe in the Xanthidae family; a gorilla crab. My understanding is they are bad news. Any experts out there that can verify this?

Here are 3 pictures I found:

Xanthid Crab 3.jpg
Xanthid crab.jpeg
Xanthid crab2.jpeg
 
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Drakal

Drakal

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Well, that was quick... I found him dead today (not a molt)... This is... Weird ? Why did he died ? I removed a lot of alguea yesterday and a lot was in suspension in the water, could be that ?

Everything looks fine, just a perpermint shrimp is acting weird (slow/not reactive) since few days.

Temp. 25
pH 8.3
NH3 0
NO2 0
NO3 0
PO4 0.01
SG 1.026
KH 7.5
Ca 400
Mg 1400

 
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