Well you would have to say they have claws and are coloured in red or orange and obviesly they both live in the sea but some are fresh water.
A crab that lives in the shells of other shell fish is called a hermit crab.
fish
it depends how big the hermit crab is or the fish bowl
yes it does eat fish
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.
No, a crab is not a fish. A crab is a crustacean. They belong to the phylum of Arthropoda, subphylum Crustacea. A "fish", though the term can apply to many different creatures, is in the phylum Chordata, subphylum Vertebrata.
Fish.
plankton
fish
no
lined butterfly fish get eaten by by crab fish.
fish have scales and crabs have a shell