Longest Molt Experience?

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DragonsFly
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Longest Molt Experience?

Post by DragonsFly » Tue Jun 08, 2021 7:12 am

Last time Major Tom molted with me, he was down for 18 months, so I determined not to worry (well, to tell myself to shut up whenever I started to worry!) if this molt was even longer than that. However, in between, we had to move and the crabs ended up being kept for about 8 months, by someone who claimed to know how to keep them properly, but clearly did not because Mr. Jones did not survive their keeping. I had given them my 75g set-up, asking them to keep them in that, as it was, until we could ship the crabs, and then they could keep the tank, but I learned later that they decided that set-up was "way more than needed for hermit crabs," so they moved them into something else, something clearly less good, because one of them died. So it's possible, I guess even probable, that Major Tom and Billie Jean were not in great shape after being kept in sub-optimal conditions; I'll just never know exactly how they were kept.

Major Tom and Billie Jean were eventually shipped to me; they survived the shipping and were both very active in their new home for a few days, dug under for a brief time to "de-stress," then were up again for a few days, then dug under to molt. I supposed, by that (and something else the keeper said about what they were moved into) that the major problem with how they were kept was that there was not enough depth of substrate for them to molt, which perhaps resulted in Mr. Jones (the smallest of the three) ending up having to do a surface molt, and not surviving that. Perhaps the other two were large enough/mature enough to be able to put off molting long enough to make it to being shipped here. After going down the second time, Billie Jean was under for the winter and then re-emerged in the spring, which had been their typical pattern before Major Tom's long molt, where he went under with the other two in the fall, they all stayed down for the winter, then Major Tom did not emerge with them in the spring, but did emerge the FOLLOWING spring. So last spring, when he did not emerge, I thought--okay, he's taken 18 months before, here we go. But Billie Jean has been up, and down, and back up now, it's been the 18 months plus, and so here I am wondering what our long-term crabbers' longest recorded molt in captivity has been?

Mostly I'm curious, because there is nothing else I can do but wait and wonder, but also I'm sadly starting to wonder if he just wasn't able to make it, and what I really have now is a singleton, and if so, whether I should start making plans for what to do about that. . . . . :|

So--for keepers of large/old crabs, what's the longest molt you have experienced with them?
--{}: Dragons Fly Farm --{}:
Resident PP's:"Major Tom" & "Billie Jean"

“An adventure is only an inconvenience rightly considered. An inconvenience is only an adventure wrongly considered.”
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Pumpkincrab
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Re: Longest Molt Experience?

Post by Pumpkincrab » Tue Jun 08, 2021 12:14 pm

18 months????Goodness!
My crab's aren't at all jumbo, but are getting large. My longest molt was just around 5 months. Hopefully others will chime in too.
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Hermit lover 360
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Re: Longest Molt Experience?

Post by Hermit lover 360 » Tue Jun 08, 2021 1:44 pm

My largest crab is the size of a golf ball and his longest molt was 1 year and 3 months.

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Re: Longest Molt Experience?

Post by DragonsFly » Tue Jun 08, 2021 7:02 pm

Thanks, Pumpkin and Hermit lover!

Hermit lover, how long have you had that largest crab?
--{}: Dragons Fly Farm --{}:
Resident PP's:"Major Tom" & "Billie Jean"

“An adventure is only an inconvenience rightly considered. An inconvenience is only an adventure wrongly considered.”
― G.K. Chesterton


Hermit lover 360
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Re: Longest Molt Experience?

Post by Hermit lover 360 » Tue Jun 08, 2021 7:22 pm

Exactly 1 year and 4 months. He went down around a month after I got him. I actually thought he had died. Then he popped up.

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DragonsFly
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Re: Longest Molt Experience?

Post by DragonsFly » Wed Jun 09, 2021 7:28 am

Hermit lover 360 wrote:
Tue Jun 08, 2021 7:22 pm
Exactly 1 year and 4 months. He went down around a month after I got him. I actually thought he had died. Then he popped up.
Okay, so he went down for that very long molt right after you got him. That is hopeful to me, because I don't know what kind of shape Major Tom was in after I got him back. Thanks!
--{}: Dragons Fly Farm --{}:
Resident PP's:"Major Tom" & "Billie Jean"

“An adventure is only an inconvenience rightly considered. An inconvenience is only an adventure wrongly considered.”
― G.K. Chesterton


Hermit lover 360
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Re: Longest Molt Experience?

Post by Hermit lover 360 » Wed Jun 09, 2021 11:20 am

No problem, good luck!

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DragonsFly
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Re: Longest Molt Experience?

Post by DragonsFly » Wed Jun 09, 2021 7:29 pm

Anybody else have any inspirational tales of long but successful molts???
--{}: Dragons Fly Farm --{}:
Resident PP's:"Major Tom" & "Billie Jean"

“An adventure is only an inconvenience rightly considered. An inconvenience is only an adventure wrongly considered.”
― G.K. Chesterton


crabocado
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Re: Longest Molt Experience?

Post by crabocado » Tue Jul 20, 2021 2:44 am

At one point my crab Busy was under several months and I assumed she was a goner. This was early in my crab experience before I knew how long a molt could take. I don't know how long it was, because it was before I started my crab journal, but probably around 6 months, maybe more, I don't know, 9 months maybe at the most. I truly thought her gig was up, and I just was sort of too busy myself, or procrastinating, on cleaning the cage and getting rid of the carcass. Then one day she appeared! It felt like a miracle. So that was a real learning experience, and a lesson not to give up hope. I think if/when she has a molt that extends to a year or more, I most likely will start to gently poke around in the substrate. I imagine that the actual molt occurs pretty early after they go underground, and the succeeding months are spent "vegging out" and just slowly eating the molt. But I don't really know if that is the case.

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Re: Longest Molt Experience?

Post by crabbycasey » Tue Jul 20, 2021 11:04 am

Crabocado (love this name, haha), I’ve actually learned here that they spend a majority of the time down there looking for their perfect molt spot and then come topside once they’ve hardened up and ready for some food/water

DragonsFly, is there any possibility that Major Tom has come up briefly and then gone back down without you seeing him? I ask bc I had my Sandy down a while ago and she was down for a long time. I happened to be standing at the back of the tank one day (camera doesn’t get that spot real good) and I saw her climb out of the sand and then do an immediate u-turn and went back down for another several weeks, lol. It was almost like once she realized where she was and had taken a wrong turn…so went right back under! Just a thought. Hope Major Tom is just a slow poke and maybe he’ll come out massive, lol!


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Re: Longest Molt Experience?

Post by DragonsFly » Tue Jul 20, 2021 6:04 pm

LOL thanks crabbycasey; yes it is possible that he could have come up; I don't have night cameras watching to know for sure. I suspect he has not, because of the rate at which food is disappearing, and the fact that there have not been any signs of new digging. I gently smooth out the substrate every night before I go to bed, so I can tell what has been disturbed in the morning. So far, just Billie Jean's tracks all around (she hangs out buried under the moss in the "tree-hanging" moss pit during the day). It is POSSIBLE that Major Tom has come up at some point, gone back down like you describe, then Billie Jean dragged over his digging spot and covered the evidence. . . but seems fairly unlikely.

I hope he comes up soon; if he doesn't by September I may actually do something I've never, ever done and dig. It's only because I don't want Billie Jean to be a singleton for the rest of her life, so if Major Tom didn't make it, I will need to decide whether to let her go to someone else who maybe lost one of a pair, or adopt another that maybe lost its partner, or what.
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Resident PP's:"Major Tom" & "Billie Jean"

“An adventure is only an inconvenience rightly considered. An inconvenience is only an adventure wrongly considered.”
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Re: Longest Molt Experience?

Post by mool » Sun Jul 25, 2021 10:43 am

My old jumbo Molly (she's my "old jumbo" because she's been a jumbo for years) takes about 18-24 months to molt. My new jumbo (no name, has been a jumbo since molting last year) takes about 8 months.


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Re: Longest Molt Experience?

Post by crabocado » Sun Jul 25, 2021 12:00 pm

crabbycasey wrote:
Tue Jul 20, 2021 11:04 am
Crabocado (love this name, haha), I’ve actually learned here that they spend a majority of the time down there looking for their perfect molt spot and then come topside once they’ve hardened up and ready for some food/water
From reading the care sheet and elsewhere on these forums, my understanding is there are days or weeks getting ready underground for the molt, and another period of days or weeks after the molt in which the crab eats its molt and prepares for life at the surface. I had the good fortune of mine choosing to molt at the front surface of the tank once, and I was able to see the shed exoskeleton pretty early on, so that was really cool. It was difficult to take decent photos since there were bits of substrate on the glass. She spent quite a while under there after the shed "skin" appeared.

It seems like once one gets into the jumbo size range, so much time is spent underground that it would be cool to create a special table with removable panels, to be able to peek underneath the tank. Seems likely the crab will burrow down to the bottom of the tank in many cases, so it might be possible to monitor. Probably not a good idea to shine a lot of bright lights, but maybe once a week or something! Or perhaps there is a wavelength that crabs are less sensitive to (similar to the use of red light when viewing nocturnal mammals).

DragonsFly, it seems a trial of patience, but at least you have Billie Jean to watch. Now that Busy has gone down, I will get my crabtertainment from reading about other people's crabs. It doesn't seem like crabs really get lonely, but people do. If Busy takes a year, I might start another crab in the empty 10-gallon...

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Re: Longest Molt Experience?

Post by DragonsFly » Sun Jul 25, 2021 2:44 pm

I don't think they do get "lonely"--remember that these are animals for which it is a natural part of their lives to spend months and eventually years underground alone. I do think a pair is probably the best way to keep them in captivity, because they will provide stimulation for each other that they will not get alone, but the way you keep Busy means that she gets a lot more stimulation than the vast majority of crabs. Also, since she has been alone for 8 years (if I remember correctly?), she may actually have trouble adjusting to sharing a captive enclosure with another crab. You can try it; it might be fine, but there's no way of knowing. (Also, consider that it will be considerably more difficult to keep track of two roaming hermit crabs every night!)

As for "having Billie Jean to watch," I almost never see her; I just know she has been up and around because there are tracks in the tank in the morning. On rare occasions if I am unfortunate enough to have to be up late, I may see her. I only know that she hangs out in the moss pit during the day because when I re-moisten it, she shifts a bit as some drips of water reach her. And of course there are long stretches of time during which she is down molting now, too. She's up now, but she spent about 5 months over the fall and winter, the last two years, underground. The older and bigger they get, the longer they will take, and adding new crabs because you want to see crabs is eventually a recipe for cannibalism. :shock: At some point, unless you want to commit to multiple large colonies like some people have (and accept the increased losses entailed), we have to resign ourselves to very long stretches of time where we are basically maintaining a private zoological exhibit where the residents are long-term "off display."

If you do decide that you really do want 2 crabs, let me beg you not to purchase another. Please adopt one that needs a new home instead. Buying crabs just encourages the cruel and ecologically disastrous trade in these wild animals. :crabblush:
--{}: Dragons Fly Farm --{}:
Resident PP's:"Major Tom" & "Billie Jean"

“An adventure is only an inconvenience rightly considered. An inconvenience is only an adventure wrongly considered.”
― G.K. Chesterton

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Re: Longest Molt Experience?

Post by CrabbyLover77 » Sun Jul 25, 2021 3:48 pm

I know crabs aren't really supposed to get lonely, but I'm pretty sure my biggest and oldest crab Beau did when his buddy died. In 2019, his only buddy Katrina passed away. I caught him hugging an empty shell for over an hour (like sitting up and legs around it, completely still). I felt so bad I put a toy hermit crab in with him. I found him sitting on top of it a couple times. Then I put a little compact mirror in with him, and he would sit by that too (we do that at the wild bird rescue I volunteer for. If there is a bird that likes company, we give them a mirror so they think they have buddies in their cage/room). It took me a month to find my first rescues here on the HCA for Beau. He instantly bonded with one of the crabs. Everytime I add a new crab he always has to check them out and say hi. He's never been aggressive and seems to enjoy lots of company. He's been under for about a month and I miss him! He's my favorite crab, so I always worry when he goes under.

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