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It depends on the type of crab you are referring to. If it is a hermit crab, it will eventually die because hermit crabs need seawater (seawater contains iodine and other minerals that support the growth of the crab.) If it is a normal crab (the ones you eat and cook) it can adjust to the environment or the freshwater you were talking about. If crabs can live in land, so do they live in fresh water.
What else can I help you with?
Is halibut flounder tuna trout fresh water?
It depends, Tuna is salt water, Trout is fresh, halibut is salt, flounder is salt.
Does squid live saltwater or freshwater?
Saltwater
Do angelfishes live in saltwater or freshwater?
Angelfish live in saltwater
Do flounder live in salt and fresh water?
Flounders are saltwater fish, some can be kept temporarily in brackish water.
Where do flounder live?
Flounder are saltwater fish that live in lagoons and estuaries. Flounder species are found along the Atlantic coasts of the US and Canada, in Europe, and in Japan.
Do salmon live in freshwater or saltwater environments?
Salmon live in both freshwater and saltwater environments. They are born in freshwater, migrate to the ocean to grow and mature, and then return to freshwater to spawn.
What does a bottle-nose dolphin live in freshwater or saltwater?
Saltwater.
Where does an eel live?
freshwater and saltwater
Do parrotfish live in freshwater or saltwater?
No
Does the Tarpon live in freshwater or saltwater?
It lives in both. It is primarily a saltwater fish but does adapt to live in strictly freshwater (not just brackish)
Can ferns live in saltwater?
no they can't they have to live in freshwater
How much freshwater can a saltwater fish take?
A saltwater fish tank can be half freshwater and all of the saltwater fish will live but not for very long.
