Do crabs have to live in water?
yes they can stay out of water for 9999 hours
Some crustaceans are adapted to be able to live on land and breath oxygen from air and water. The ones that live when they are taken out of the water are land crabs, which will usually only return to the water to breed. When crabbing, the containers hold water so that crabs who only live in water are able to survive and be sold as fresh crabs.
Marine hermit crabs can only live in an ocean style fish tank with correct salinity, calcium and pH. Land Hermit Crabs cannot live under water. There are no known hermit crabs at this time that live in fresh water although there are several terrestrial crabs that do, like fiddler crabs and moon crabs, however they do not live fully underwater and require dry land to climb out on and rest and molt.
No, Hermit Crabs and Fiddler crabs require two different environments. The Hermit Crab would drown in the water a Fiddler Crab needs. You can always ask your local pet store if there is any way possible though. Some hermit crabs live on land others live in water even land hermit need two enter salt water , fiddler crabs are brackish or fresh hermit crabs can't breathe in those environments
No crabs cannot live in a tropical tank. If you go to a petstore they will try to sell you small fiddler crabs, however they do not live in freshwater, they live in brackish water like most small crabs. All brackish water crabs need to be able to be out of water for a certain period of time. If you do buy one of these crabs and put them in your tank they will only…