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Hermit crabs are very social and LOVE company they usally don't live as long as they do when their with others. They can live over 2 years mine lived for 3 years.
Hermit DO FIGHT they fight over shells. one likes a shell the other has (make sure your hermies has alot of shells, NOT over crowding the tank!) and they fight. The victim usally dies over the fight.
But if you are there when it happens, you should blow on them if they still fight pick them up (do NOT pull them one will lose a limb!) if that doesn't happen you need to LIGHTLY mist them with distilled water.
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∙ 12y ago
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∙ 14y agoYes all crabs are aggressive by nature. They can see VERY well with those stalks they have for eyes.
I have owned crabs and they will fight to the DEATH if another crab shows any weakness.
Wiki User
∙ 14y agoSome hermit crabs do fight. I week ago bought two hermit crabs. At first I bought one and then I read that they like to be with other crabs so the same day I bought another. The first one i bought was really active before I got the second but slowly I saw him retreat into his shell. Yesterday I found him without a leg but I never saw the crabs fight so I didn't think that was the reason. However, today I cam home from work and found the first one ripped apart in the cage. After some research I learned that they fight over shells and actually do rip each other apart on occasion. I have had about 15 hermit crabs throughout my 25 years and I never knew this fact. So, if you find your crab is acting weird with another crab move them to separate cages.
Wiki User
∙ 14y agoYes they do. Actually in the wild they travel in groups of hundreds. A couple of crabs 2 the least would do just fine. If you buy two small crabs, one might get jealous of the other ones shell and "shell fight" (when a crab shakes the other crab's shell until they retreat, then he will move into the victim's shell, the victim will most likely move into the other shell or die) It would be best if you buy crabs that vary in size.
Wiki User
∙ 14y agoany hermit crabs might fight, although if you have good shells and food for them they shouldn't.
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∙ 11y agohermit crabs sometimes fight because they are eather trying to get a female or to fight for shells
Wiki User
∙ 13y agoNo of course not they'll kill each other:):(
Wiki User
∙ 11y agowell they some times fight to get a female
Wiki User
∙ 15y agoyes with ak-47's
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Are girl hermit crabs small?
There is no difference in size between female and male hermit crabs.
Why do hermit crabs walk around without sells?
Hermit Crabs walk around without shells because they are either molting, the climate is too hot, or they got into a shell fight with another Hermit Crab.
How many hermit crabs is too many hermit crabs?
A lot
Are hermit crabs herbavores?
No, Hermit Crabs are omnivores.
What Enemies Do Hermit Crabs Have?
fish and bigger hermit crabs
Do Hermit Crabs Have Antennas?
Yes hermit crabs have antennas.
Are hermit crabs death?
No hermit crabs are small and friendly
Do female hermit crabs grow?
yes. every living thing on earth grows.
Do female hermit crabs have one claw and male hermit crab have two claws?
No, they both have two claws. One large one and one small one.
How do hermit crabs fight?
They use there claws and snap at each other trying to see who is the strongest :)
What are the hermit crabs preditors?
sea birds, fish, octopuses, crabs, and other hermit crabs
Do Land hermit crabs lay eggs?
Yes land hermit crabs do lay eggs if you suppose to have a sot of digged up spot in the tank check for a egg but watch out if you touch the egg the mother will not sense that the egg is hers and hermit crabs carry a disease called salmonella so do not touch 
