How Do Hermit Crabs Eat. If you place large amounts of food in an enclosure, there may be a lot left. Whenchoosing a hermit crab as a pet, there few things you need to know.

They will actually serve as a great companion cleanup crew that will eat small amounts of jellyfish food that may have been missed. Do hermit crabs eat jellyfish? Hermit crabs are omnivores and require a balanced diet.