sea water
yes they do live underwater
In the wild, land hermit crabs live in jungles, forests, and even gardens in warm areas. Water hermit crabs live in the warm oceans.
No, there are some hermit crabs called purple pinchers and they happen to be land crabs.
no they will drown
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
Marine hermit crabs live underwater and can sometimes be found in tidepools. Land hermit crabs do not live in the water but need fresh and salt water to survive.
hermit crabs?
They cannot live with a land hermit crab because land hermit crabs live out of water so the fish would die (as you know) if it is out of water.
I think that shrimp live with the hermit crabs.
Hermit Crabs live in sea water. Guppies are freshwater fish and will not be able to live in with hermit crabs. The crabs would no doubt eat whatever dead fish you give them.
I have no idea
Land Hermit Crabs consume fresh water. It is suggested by some pet stores to have two watering dishes. One for bottled fresh water and the other for bottled salt water. The hermit crab can choose between the two depending upon the nutrients it feels it needs. If you do not have salt water- that is fine, it is not necessary.