What Does Hermit Crab Eat: Hermit Crab’s Regular Diet

Hermit crabs are omnivorous scavengers and will also consume various animal-based food items. Hermit crabs love to find food wherever and whenever they can. Some of the things hermit crabs like to eat include algae, dead organisms, and small invertebrates. 

Hermit Crabs and Their Food

The primary food source of hermit crabs for them is algae. Make sure you give them plenty of this nutrient-rich food to ensure their health and wellbeing. In addition to algae, pet hermit crabs also consume small crustaceans and insects. If you feed your crab something other than these, it may become sick and die. So, stick to the basics and give your crab a balanced diet.

Hermit crabs are fascinating creatures that need proper feeding to stay healthy and active. If you cannot get fresh seafood, feed them frozen foods instead. Make sure to give them a varied diet that includes fresh food, live food, and water. 

Keep their tank clean and bright, and avoid overcrowding. Please give them a few aquatic insects or small fish to play with to keep them entertained. And lastly, make sure to monitor their water intake and water quality to ensure they stay well-nourished.

Hermit Crabs and Their Food in the Wild

Hermit crabs do not eat plant material. They can, however, consume small invertebrates, such as insects or crustaceans. Give them fresh water and appropriate food daily for a healthy hermit crab diet. 

You can also feed them seaweed, but you should do this in moderation as it can be high in salt. When it comes to their housing, hermit crabs do not require an elaborate setup – just a tank of fresh water with some rocks and seaweed. 

Baby Hermit Crabs and Their Food

Baby hermit crabs will eat anything they can, even small pieces of meat or vegetables. Their favorite food, however, is aquatic insects. So if you see them munching on something alive, don’t be alarmed – it’s just another way of exploring their environment. Make sure to give them a good diet of fresh water and algae-free food to grow and develop properly. 

Variety of Foods Hermit Crabs Can Eat

Animal Based Foods

Hermit crab’s favorite foods include small dead animals, insects, and other hermit crabs. Just be aware that some foods contain toxins that could harm your crab. In addition to food provisioning, you should regularly provide water in a clean and fresh container. 


Some hermit crabs will also consume seaweed. Make sure to provide fresh and clean water each day and small amounts of algae-free food. Seaweed can help add some variety to their diet, but it should not make up the bulk of their food intake.


Hermit crabs also enjoy consuming crustaceans, such as shrimp or krill. Just make sure to provide them with fresh food and clean water regularly. Like other foods, crustaceans can contain toxins that could harm your crab.

Plant-Based Foods

Plant-based foods are becoming more popular, with some of our little ones loving them, especially cucumbers, strawberries, and lettuce. Providing a varied diet for hermit crabs is essential as they are omnivorous and will eat just about anything. They also enjoy fruits and vegetables, algae, and plant matter in general!

Hermit crabs usually feed on algae and other small marine creatures, so be sure to give them what they crave! They are not picky eaters either – as long as the food is fresh, your crab will gobble it up without complaint. In addition, you should change the water every two days to prevent boredom or obesity – since hermit crabs love water more than anything else!

Calcium Sources

Hermit crabs need a lot of calcium in their diet to survive and thrive. Some of the best calcium sources for hermit crabs include shells and other sea creatures. Crabs can also consume algae or seaweed, but these substances are not as rich in calcium. Remember to provide fresh food, clean water, and a varied diet that includes calcium-rich foods. And last but not least – keep an eye on your hermit crab’s weight and adjust their food accordingly!

Vegetables and Fruits

A hermit crab’s weekly diet should include vegetables and fruits, as these are the most nutrient-dense foods. Hermit crabs will enjoy eating cucumbers, strawberries, lettuce, and other leafy greens. Be sure to provide them with fresh water daily and ensure their food is plentiful and high in calcium.

Commercial Diets

Commercial diets are a great way to provide hermit crabs with a nutritious diet. If you want your crab to stay healthy and active, include various food items in their diet each day. This will ensure they have everything they need to grow and thrive. In addition, commercial diets come pre-mixed and are easy to use. Add the right amount of food to the bowl, feed your crab and watch them enjoy a healthy, nutritious life!

If you want to make your diet for your crab, include calcium, crustaceans, vegetables, and other healthy fruits, as well as algae or seaweed. These substances are not as rich in calcium, but they will provide the hermit crab with all the necessary nutrients. Remember to keep an eye on their weight and adjust their food accordingly!

Hermit Crabs and the Way They Hunt and Forage for Food

Hermit crabs use their heads, claws, and eyes to hunt and forage for food. Some hermit crab species are known to scavenge, meaning they feed on dead or decaying animals on the sea floor. They snatch these prey items from the water surface with their claws. In addition, some hermit crab species are predators, feeding on small creatures living in the coral reef.