Finatics enjoys writing about animal care and is "owned" by a guinea pig, 4 hermit crabs, three African dwarf frogs, and also a betta fish.

You are watching: How often do hermit crabs molt


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What must I perform If my Hermit Crab Is Molting?

What a hermit crabs requirements while it's molting is isolation. Back hermit crabs only molt around once every 18 months, if you don’t understand what come do when the time comes, it deserve to be an extremely stressful for you and also your crabs. Many human being suggest do an isolation tank as part crabs may strike the molting one. An ext importantly, you need to recognize the indications that a hermit crab is molting prior to you can isolate them.

Signs the Your Hermit Crab Is Molting

Your crab unexpectedly starts digging, back this deserve to be caused if the humidity and also temperature are not in ~ the appropriate levels. A crab can dig deeper to insulate himself from conditions he does no like. If it is a crab recently bought, it can be because of stress and also a new habitat.Your crab eats and drinks excessively. This is due to the fact that he’s save fat and also water in a small, gray-black “bubble” on the left next of his abdomen.Lethargy, much less activity.An ashy exoskeleton.Dull, cloudy eyes.The crab replaces a lacking limb v a gel limb, i beg your pardon looks like a small nub whereby their leg must be.Antennas look at tangled and also show much less activity.

Setting up an Isolation Tank

There are three different alternatives for isolating her hermit crab:

Buy another tiny glass or plastic tank, as long as girlfriend can administer the right amount of humidity and also heat.If her tank is big enough, you can put a small tank inside the key one, for this reason the temperature and also humidity stays the same.Isolate your crab in the key tank.

Option #1

The an initial option is most likely the most expensive, yet it assures that various other crabs will not strike the “molter.” as soon as hermit crabs molt, they room inactive, for this reason they don’t require a very big tank, despite it need to be large enough to host a water dish and a food dish. A little one will certainly do—molting is a severe affair! They’re not there to play around, for this reason you do not have to worry around decorating the with things to climb on.


Fill a dish with their consistent drinking water. If friend want, girlfriend can even fill one through saline water due to the fact that molters need salt to assist retain water. Their food food should have actually food packed with calcium in it, such together cuttlebone, sand dollars, boiled eggshells, and also sea biscuits.

Around 6 inches of moist substrate must be in the isolation tank therefore the molter deserve to bury itself. You’ll have to purchase a pet heating pad (unless you currently have one) to store the temperature around 78-80°F and humidity around 78-80% since moisture is vital to molting. To keep an eye on the temperature, a hygrometer and thermometer are likewise recommended.


You can also add big shells come the isolation tank. And also although this isn’t necessary, depending on when you put them in there, the crab can not have sufficient time to destruction in the sand, so they will certainly dive in the huge shell and molt there. Darkness is vital to molting; research studies have presented hermit crabs have actually healthier molts in darkness, like as soon as they’re under the substrate.

Option #2

The 2nd option also requires an additional tank, however without one more heating pad and other extr supplies. Fill it through substrate, a water dish and food dish, however you don’t have to worry about the humidity or temperature, due to the fact that it’s within the key tank!


Lastly, you can isolate her hermit crab within the key tank. Some people suggest using the side of a party of soda to stick inside the sand. As lengthy as that keeps the molting crab isolated indigenous the various other crabs, you don’t should be concerned around humidity or temperature (unless it’s not right in the main tank!). Simply make certain that the other crabs cannot climb over the barrier; otherwise it’s useless.

Choosing to walk Without an Isolation Tank

Many people argue it’s finest to keep molters isolated, but others disagree. They say hermit crabs need to be preserved in conditions that wake up their herbal environment- and in the wild, hermit crabs bury themselves for protection against other crabs and also for darkness. Some also argue that isolation tanks bring unnecessary stress and deep substrate have to be sufficient for the crabs. Whatever you decide to do, this crab have to be listed with peace and also quiet so he deserve to molt without getting stressed out.


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Provide Privacy for your Hermit Crab

If you doubt your hermit crab is prepare to molt, dig a small hole as large as the crab in the isolation tank and also leave the there. Check again in half an hour. If he to be serious about molting, the would have dug underneath the substrate already.


When her crab is molting, the best thing you have the right to do is leave the alone. Resist the urge to take a sneak emergence at him; friend don’t want to tension him out or tear his soft, new exoskeleton. The most you have to do is mist the tank every day and replace the food and water. Hermit crabs molt all the time in the wild, so they recognize what come do. If, for part reason, girlfriend absolutely must relocate him what else, use a spoon come gently relocate him come a brand-new place.

For exactly how Long does a Hermit Crab Molt?

Hermit crabs have the right to take several weeks come a month to molt, yet wait until your crab acts like himself again, is more active, and also has eaten his old exoskeleton (it has plenty of nutrients!) prior to moving him to the main tank. Molting is exactly how hermit crabs grow; they melted their hard outer-casing and also grow a larger one.

Additional Resources

This article is accurate and true come the finest of the author’s knowledge. That is not expected to substitute for diagnosis, prognosis, treatment, prescription, or formal and also individualized advice from a veterinary clinical professional. Pets exhibiting signs and symptoms of distress should be seen by a vet immediately.

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Comments

Fern on august 05, 2020:


Natey wtf the is pet abuse and also many people would have actually taken those hermit crabs from u gladly for prefer 20 bucks each. And likewise how is hurting and also killing animals funny. WTF really. You need to really talk to someone around how you assumed killing these poor hermit crabs to be fun. I have actually hermit crabs and also if friend take care of them effectively they turn into really nice spring animals. They space also really nice if you provide them the ideal training. I also taught mine a couple of tricks favor going v a little hoop and also grabbing a tiny stick if i say organize it. Castle are really intelligent and it is sad the you killed them. Ns hope u understand what you did was wrong now and that many people love these males as pets.


natey on July 25, 2020:

i don't like hermit crabs cuz they space ugly and i eliminated some unwanted hermit crabs by dumping lock on a hot asphalt drive method and climate stomping ~ above them grinding them under mine Bluntstones...not the many humane however fun and funny! i verified them im the boss! ^_^

Stephanielewis5161983 on June 28, 2020:

My hermit crawled face very first into another shell and also hasn't relocated is that molting ? have to I cover him ? Help


Tiffany on may 10, 2018:

Please I require help! my crab simply molted but I don’t have a shell for it!!!

derek top top February 09, 2013:

thanks because that the news

.I practically thoght the my hermit crab died!

Angel on November 13, 2012:

My crab digs a lot however i don't understand if the is molting or the temp since the temp isn't perfect. I just can't tell, HELP?!?

Tessa toutant top top July 29, 2012:

I have an odd trouble I have actually two crabs molting in ~ the exact same time adthey room in the main tank and the other crabs I put in the other tank ns seperTed the two molting crabs by a item of cardboard is the ok it's my an initial time ever before having a crab molt you re welcome I need help