A Cuttle Shuttle.
it is a fish in shell
the shell fish eat reef rocks
no
no
There are certainly aquatic animals that can't swim, such as the clam, or the adult barnacle (and even then, the larval form of the barnacle does swim) but you wouldn't really call anything a fish if it couldn't swim. Fish swim.
shell fish eateat a diet composed primarily of Phytoplanktonand ZooplanktonFile:Oysters_p1040741.jpg
fish and shell fish
no it doesn't
I think that the larger fish eat the crabs when are out looking for a shell ,shell-less. But also it is possible to have a smaller fish eat a crab shell-less depending on the size of the crab.
Crawfish do not ever come out of their shell. The shell is a type of exoskeleton.
plankton
a shell