Help !! What is this ?

[Badger_Reefer]

whats that ??

 

[Tahoe61]

A crab. Which one no idea. It looks like beign variety.

 

[Badger_Reefer]

Okay

 

[BryanM]

Crab, if you can get better pics, especially of its claws, we can help ID it, and help determine if it is reef safe or not.

 

[EnterName]

Pitho/Sponge crab? Decorator crab?
There are quite a few with odd shapes:

https://discoveraquaticsshop.com/products/orange-sponge-decorator-crab
https://www.saltwaterfish.com/product-decorator-crab-spider

 

[Badger_Reefer]

Crab, if you can get better pics, especially of its claws, we can help ID it, and help determine if it is reef safe or not.

 

[BryanM]

I am not sure, but it looks like a decorator crab.

If I am right, it is reef safe with caution. If it starts nipping at corals it will likely never stop.