Hermit crabs are omnivorous scavengers, eating microscopic mussels and clams, bits of dead animals, and macroalgae. These crustaceans have been misnamed for two reasons: First, they’re not true ...

You shouldn’t ever have just one hermit crab. They are animals that rely on others and may even stop eating. Most people notice that when hermit crabs are in groups, they are often more active.