[fishboy]

Here's my backround knowledge...
They are a solitary species and are best kept alone
They shed their shell once a month and according to my knowledge of crabbing shedding in crabs at least tends to take place more around the full moon for some unknown reason.
They like meaty food though will eat anything really
They like places to hide, these hiding spots are needed directly after shedding.
They don't get ich from what i know.
Copper based meds will kill them.