Hermit crabs will normally get along with other hermits of equal size.
Put your new hermit crab in a bath of distilled water (make sure the water is no higher than the crab's legs) and let him/her crawl around in it for a while. Then, put your crabs back together and see how it goes. If that doesn't work, watch them for a while and maybe give them both baths. That happened to my crabs, but now they like each other.
Yes, hermit crabs don't usually fight. You could give the new hermit crab a bath so that it smells the same as the other hermit crab in you tank.
yes although it would be wise to clean and disinfect it first, you don't know why your old crab might have died.
Advantages: With a shell, the hermit crab is safer from predators, or any other threats. It is basically more protected. The snails have less shells lying around because a hermit crab is probably constantly looking for a new one. Disadvantages: The snail's shell is heavy on the hermit crab's back, so it slows it down. A hermit crab outgrows its shell and will have to find a new one soon. The snail has no disadvantages. I hope I helped you! Sorry if this isn't what you were looking for! :)
Congratulations! No need to rename it. It's the same hermit crab. It molted it's old skin! This means your hermit crab is perfectly healthy and can grow! Make sure you have a slightly bigger shell though. Leave it alone until it walks around and is very healthy.
If your land hermit crab's shell gets to small get a new shell. The shell hole should be the same size as your crab's big claw or bigger Make sure your crab's new shell is clean. DO NOT FORCE YOU CRAB TO COME OUT! All you have to do is set your crab's new shell in it's cage and wait.
Get a new one!
then the crab goes and finds a new shell
About as small as one of these letters I am typing.
The shell that the hermit crab adopts and wears and changes many times throughout his decades long lifetime helps him in several ways. The hermit crab has a very delicate abdomen that is protected by the shell. Without this shell, his abdomen could become punctured very easily and the crab would die. The hermit crab also carries water in his shell to keep the abdomen moist. If it were to dry out, again, the hermit crab would die. The crab balances the salinity of the water within his shell by accessing fresh or salt water as needed. The shell is also his shelter, and protects him from predators. The ideal fitting shell will allow the hermit crab to pull fully inside and to block off the opening with his large pincer.
You must always have a spare larger shell for a hermit crab as they have no natural shell of their own. Just place a larger shell in the tank and if the crab does not use it straight away, don't worry, it eventually will do as they need larger ones as they grow.
No, things decompose only when they are dead. A hermit crab out of a shell can still survive, but it is vulnerable to predator attack and from the environment until they find a new shell that fits.