Killer of Crabs

[ThunderGoose]

Something killed a red gorilla crab in my 55 gallon yesterday. It is dead, not just a shed carapace, only 1/2 inch (2 cm) across.




I didn't know I had a gorilla crab. ;Jawdrop

Law and Order: Tranquility Base Reef Tank!
Who done it?
My tank is peaceful for the most part but I do have four urchins (hitchhikers), a common starfish (my lead suspect), some emerald crabs, serpent and brittle stars (big ones), a chiton, and shrimp. I think the sexy shrimp are cleared for now (unless they ganged up the gorilla).

Dun dun.

 

[94Roarge]

What about fish? Out of what you listed so far, the Emerald Crab would be my prime suspect

 

[nautical_nathaniel]

Could've just died too, don't rule that out haha I've had emerald crabs that look great one day and then just die the next. I know gorilla crabs are supposed to be bulletproof but at the end of the day they are still just little crabs.