Published on Saturday, May 9, 2009 by admin Hermit Crab Food Hermit crab food can be purchased at any local pet store. It is good to use a mixture of both the solid pellet and the powder. Include fresh fruits and veggies, but do not feed citrus to them. Crabs also need calcium, so always keep a bit of cuttlebone in the tank, away from the water. It is also a good idea to purchase sea salt at your local pet s...