Yes! Infact they survive longer with atleast 2 or 3 buddys to play with.
usually two or three years
Small fish, plankton, and other hermit crabs
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
In captivity, they live 1-2 years.
A lot
No, Hermit Crabs are omnivores.
They are only on females and they are two dots on the end of the hermit crab.
no
No, Hermit Crabs and Fiddler Crabs are very different, and require two whole different living conditions. And Fiddler Crabs are very aggressive, and will probably attack the Hermit Crab anyway. So, in all, it just isn't a good idea.
fish and bigger hermit crabs
Yes hermit crabs have antennas.
No hermit crabs are small and friendly