What is this? Crab ? Clam?

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Just wondering what these are? Are they reef safe?

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fr499y

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Reply #1

first one I've never seen like that before but a crab. No idea if safe.

Second looks like a bi-valve, if thats the case then perfectly fine to keep in.

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HK_Fuey

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Reply #2

1. Never seen that crab before. Looks a bit like an arrow crab, but they have really long spidery legs. Closest I could find is a masked crab, but they don't live in warm reef environments. It could have come from some local/Mediterranean rock?

2. Agree. It's a bi-valve. Harmeless filter feeder. Like a muscle.
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Staceycmw

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Reply #3

Awesome, thanks guys, I took the crab out and put him in another mini tank, I think he was harassing my star fish, and the other one is just swimming around (extremely weird )

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DUSTYBOY272

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Reply #4

Did these both come in with your live rock?


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