Are Hermit Crabs Crabs: Appearance, Habitat, and Conservation Status

Hermit crabs are crabs. They are air-breathing arthropods, which means they have an exoskeleton and shell. They’re members of the Crustacea class, which includes things like lobsters and shrimp. They are found in parts of the world with cold climates, such as North America and Europe. 

They can grow to be impressive creatures, reaching up to two inches in length. They can be pretty demanding and require a lot of space – anywhere from 12 to 24 inches wide – in which they can crawl around. Hermit crabs live solitary lives but gather together during mating season and afterward for protection from predators.

Hermit Crab Appearance

Generally, hermit crabs are small with a pointed carapace, but some varieties can be more significant. All hermit crabs possess two pairs of eyes – one on top of the head and one on the front slope of the carapace. They have strong legs and claws, which they use to scavenge for food. In addition to their eyes, hermit crabs have a pair of antennae to sense their surroundings.

Where Can You Find Hermit Crabs?

Hermit crabs usually inhabit reefs but can also live in other coastal areas, such as mangroves or seagrass beds. They live in all sorts of habitats but are particularly common in shallow water near shorelines. In addition, they can be found in a wide variety of climates, both tropical and temperate.

Building a Safe Place for Hermit Crabs

As such, they require a safe and comfortable habitat to thrive. The following are some tips on how to make sure your hermit crab has the perfect living space: 

  • Choose a crab-proof container.
  • Plant an appropriate hermit crab habitat.
  • Provide a hiding spot and plenty of food and water.
  • Keep the crab’s environment humid and warm.
  • Monitor your hermit crab’s health and behavior regularly. 

What Do Hermit Crabs Eat? 

A hermit crab’s diet consists of a diverse range of wet and dry foods. For example, algae, insects, and worms make up wet foods, while vegetables and fruits make up dry food options. Make sure your hermit crab has access to various food vital for their overall health and well-being. Not only will they get the nutrients they need, but they’ll also enjoy the taste of a varied diet!

Furthermore, if your crab is too crowded or if it cannot find enough food to eat, it may start to scavenge. For example, your hermit crab may eat items you don’t want, like plastics or other contaminants. So please ensure everything in their habitat is safe and healthy before welcoming them home!

Hermit Crabs Growth and Population


During mating, the male hermit crab grasps onto the female’s pleon or sternum with his claws, then pushes down until she pops out of her shell – like popping champagne! Once she’s out, the male will carry her back to their home, where they will lay eggs on sandpaper substrates that he has prepared specially for this purpose.

Male hermit crabs will search for a female to reproduce, and this process can take up to two weeks. Once he has found her, she will lay 20-30 eggs and hatch within 48 hours!  

Conservation Status

Hermit crabs are in trouble. Not only are they in danger of becoming extinct, but they are also facing other threats like overfishing and toxic pollution. To make a difference, we need to be educated about their conservation status and do whatever we can to help. By being proactive, we can help these crustaceans before it’s too late.

In addition, caring for your hermit crab responsibly and helping to preserve their environment – like turning off the lights when you leave the room, using recycled materials, and avoiding polluting substances – will go a long way in helping these invertebrates thrive!

Predators and Threats

These crabs are sensitive to environmental changes, so they must be aware of crab predators and threats that could affect them. For example, some crab predators that can eat hermit crabs include the common crab, the American lobster, and the tiger crab. Another threat to hermit crabs is overcrowding, which can cause them to lose their shells and become vulnerable to other predators and dangers. 

Moreover, improper housing can lead to hermit crabs becoming stressed, which could cause them to abandon their homes and go into hiding. To help protect these critters, ensure that you provide a safe and appropriate home for your hermit crab from the start – giving them plenty of room with the clean substrate is critical!

Proper Handling of Hermit Crabs 

Here are some tips for caring for hermit crabs: 

  • Always ensure that your hermit crabs have access to fresh water and a food dish they can easily access.
  • It’s best if their enclosure is small enough for them to move around in but large enough so that they can find a place to hide when necessary.
  • Hermit crabs are scavengers, so you don’t need to provide them with too much food, or they’ll get overweight.
  • Offer food at regular intervals – hermit crabs are scavengers, so that they will eat anything before them.
  • Make sure their tank is big enough to move around comfortably and has plenty of hiding spaces.