Hermit crabs are scavengers and opportunistic eaters. In the wild, a hermit crab will eat just about anything, including carrion, fallen fruit, plankton, seaweed, and other plants.
A pet hermit crab should eat a combination of hermit crab food and fresh fruits, vegetables, and proteins.
The main staple of a pet hermit crab’s diet should be a hermit crab food pellet or cake. Pellets that are specially formulated for hermit crabs have the proper amount of nutrients for your pet to thrive.
You can feed a hermit crab just about any fruit or vegetable as long as they are in small pieces or mashed.
Processed foods: Foods like pretzels, bread, pasta, potato chips, and so on tend to have added salt and sugar as well as added preservatives that are not good for your hermit crab.