Is it a threat??

[Gordi]

Hi everyone, just had what I think is my first hitchhiker. It came out of a new mushroom coral and scurried off into the rock.
It's a red crab about half an inch across and I'm at a loss of what it could be.
Any ideas? Is it dangerous to anything?
Thanks for reading.

 

[blaxsun]

Would probably need to see an image to make that determination. Two possibilities come to mind: the red variant of the emerald crab and a Hawaiian strawberry crab.

 

[Gordi]

Would probably need to see an image to make that determination. Two possibilities come to mind: the red variant of the emerald crab and a Hawaiian strawberry crab.

I'll try and get a picture if I ever see it again. But at least it was free unlike my fire shrimp, Xenia, and now a yellow sea cucumber all of which vanished within minutes of going in the tank. (I know where the shrimp lives as I can sometimes see his whiskers).