black snail thing

[asherah]

sheesh.. crazy stuff tonight.
I got to put the snail back in the tank and I see a crab sitting on the rocks... what the heck..
I've had this rock for months and i've never seen these before. I scooped out the crab but apparently it's dead.... Looks like some kind of porcealian crab.
It's really little.. light in colour with pinky sorta of mottled colouring on it.
I wonder why it died..

asherah