decorator crab so sloooooooooow

[Beemo]

is it normal for a decorator crab to creep around as slow as a sloth?
also i hardly see him is this normal too?
are they active only at night? id really like to get a better look at him hes always hiding

 

[dc]

i never even see them move in the stores.

 

[Beemo]

LOL
guess hes playing "statue"