You can have as many as you want I think. If you go to the beach and find one, you should ask someone who works at the beach and make sure you can have it.
A lot
Zero. Hermit crabs lay eggs.
No, hermit crabs like many other creatures have exoskeletons.
yes they are protected in California as California is kind of a tropical country with many seas and they are many hermit crabs which represents California, thus California protects the species of hermit crabs
No, Hermit Crabs are omnivores.
I'm not sure what you mean by this question. Hermit Crab is a term used to refer to many different species of crabs that live in shells that have been cast off by snails. They can be marine hermit crabs, or land hermit crabs. Within these categories there are many different species. The Genus Coenobita contains 16 different species of terrestrial (land) hermit crabs. The Genus Paguras refers to those species of marine hermit crabs.
fish and bigger hermit crabs
Yes hermit crabs have antennas.
No hermit crabs are small and friendly
Only 3 to 5 at a time. I own hermit crabs myself , so I know what they are like and how many you need :)
sea birds, fish, octopuses, crabs, and other hermit crabs
There are not many hermit crab predators. Their shells protect them. Man is the greatest threat to hermit crabs.