Showing posts with label Hermit Crab Behavior. Show all posts
Showing posts with label Hermit Crab Behavior. Show all posts

The Basics of Hermit Crab Behavior


Hermit Crabs are quite complicated when it comes to behavior. Every single hermit crab is different and you will never meet two that are the same. Some are aggressive, some are submissive, some are outgoing, and some are truly 'hermits' that prefer to just be left alone. Some like to eat fish, some will only eat fruit. Some seem to be active and exploring 24/7, others barely ever come out of their shell. But there are a few basic behaviors that you can expect from every single hermit crab.

Pinching: Yes, quite honestly, hermit crabs pinch. If properly handled there are hermit crabs that will never pinch. Then again, there are hermit crabs that just seem to love hearing you wince when that little claw grips onto your skin. Yes, it hurts. But you have to realize this is absolutely natural behavior. In the wild hermit crabs will pinch when they feel threatened or if they think they are going to fall. Make sure to handle hermit crabs safely, over a soft surface, and never with more than a foot falling distance. Be patient and prepared. Hermit crabs aren't out to attack you, but under some circumstances they may feel the need to grip onto your palm.

Nocturnal Activity: Hermit crabs are night dwellers, they absolutely love the stars and the moon. And they get their most active in the dark hours. Be prepared for little hustling of tiny feet in the late hours of the night. If you are a light sleeper, your bedroom probably isn't the right place for your crabitat. On the other hand, if you yourself tend to stay awake into the late hours you'll find much company in these little fellas who will happily join you in your nighttime activities.

Molting: Hermit crabs molt every 10 to 18 months. This is the process of a hermit crab discarding its 'exo-skeleton' or outside layer of skin so that it can grow larger and rebuild it's next exo-skeleton. This process usually takes around 4 weeks and happens in a secluded underground tunnel.

Little Quarrels: For the most part hermit crabs are very friendly creatures, and are social by nature. But from time to time a little quarrel will occur. Most of the time no human intervention is needed. Hermit crabs squabble over all sorts of things and quickly forgive and forget. Most of the time the only disagreement noise will be small little chirps and the argument will be finished within a matter of minutes or sometimes even seconds.

Eating: Hermit crabs are scavengers by nature. They eat everything from seaweed to dead fish to fallen fruits and wild grass. They love food and need a diverse diet of many different things.

'Bathing': Hermit crabs don't necessarily 'bathe', but they do visit saltwater and freshwater ponds habitually to take a dip. Some would say they're swimming, some say 'wetting their gills', and some say they're bathing. All of the above may be true, but the fact of the matter is that these little creatures love water and should always have access to a good amount of it.

What Should I Do With A Molting Hermit Crab?

As a crab owner, by far one of the most stressful events to go through is a molt. So first, take a deep breath, this is a completely natural part of a hermit crabs life and with proper care your hermit crab will come up even healthier and happier before. The key sign to an upcoming molt is your crab digging underneath the sand and remaining there for a few days without coming above ground. Most likely the molt has already begun. NEVER under any circumstances try to move a crab that is already molting. At such a sensitive time, moving your crab could severely hurt it.


Photo credit to the Oregon Hermit Crab Rescue. 
Click their name to learn more about this great rescue!



So what can you do then? Well, first of all, just be patient. It's not necessary to be a doctor to your crab as it goes through this phase, but there are a few things you can do to ease them through the process.

Keep the sand moist: During this time your hermit crab's body is going to be beneath the sand. At this time it's body is going to be very tender and even more susceptible to dryness. Avoid your hermit crab 'drying up' by keep the sand damp (not soaking wet or flooding, but just of a usual 'sand-castle' consistency.

Leave the tunnel open and untouched: Do not attempt to 'bury your crab' or make it more comfortable. Try to leave the tunnel open so there is a consistent air flow to the crab. If you want to discourage other crabs in the habitat from entering the hole you can slip a plastic cup on top of the hole.

Have cuttlebones and fresh food available: At some point in time your crab is going to rise again. Be prepared! It's going to be hungry, so always keep fresh food available. A cuttlebone will help them regain their necessary minerals. Combined, both will lead to a quicker recovery.

Keep the humidity up: If your humidity is usually low, now is an especially important time to try to keep it higher. Keep it around 80% for the most comfortable molting environment for your crab. Above 80% wouldn't hurt either, but may cause mold to grow quicker. 80 % is ideal.

Regulate the heat: Just as with the humidity, fluctuations in heat will effect your crab more severely when they are molting as opposed to any other time. Try to keep the temperature around 78 degrees Fahrenheit for the most comfortable environment.

Have extra shells ready: Molting is the process your hermit crab goes through as it grows bigger. It may just move right back into it's other comfy shell, but it may also come out feeling like it's time to move into something different. You should always have shells available, but now is a time that they are even more important to keep in stock.

Don't remove the exo-skeleton (left-over skin of a molted crab): So many people think that the exo-skeleton should be removed from the crabitat to prevent mold. This is absolutely not true. The exo-skeleton should absolutely be kept in the aquarium. Your newly molted crab will eat it to regain lost nutritions that will help him grow his new exo-skeleton.

Let your crab 'harden up': After a molt your crab will be weak and need time to rest, eat, and rebuild it's energy. Give it a few weeks before handling it, just to ensure it's nice and healthy.