Oh boy. Some sort of crab??

[Ejostling]

Ok, so this is new. It looks like some kind of crab. Sorry, that's the best picture I have, its hiding now.

 

[Cell]

Impossible to tell from that pic.

 

[Ejostling]

I could only get that pic before it hid. Any ideas on how to catch a rogue crab in a small nano tank?

 

[Super Fly]

if it's got pointy or black tipped claw, then its undesirable. Can use a skewer to stab it after luring it out of rock w food or make a trap using plastic water bottle that looks something like this

 

[KJ]

Google Porcelain crab.