Most likely a land hermit crab, but you should always check with the person that sold it to you.
of course it needs sand
yes
Yes because moon sand has many chemicles in it that are not yet introuduced to the crab. Something may happen to the hermit crab so it would be safe not to put the hermit crab in the moon sand, since scientist have not experimented it and found out for sure.
yes
yes, just make sure that no one catches u
For the most part, yes. You can use the most expensive type which comes in small bags at about $7 per bag called calcisand or normal play sand like you would use in a child's sandbox. If you have a sick hermit crab that needs extra calcium however, you may consider calcisand because the crabs gain calcium from this type of sand. Otherwise, either is just as good for a regular land hermit crab.
I dont think so but you can always buy new sand.
probably not. but, you can always use your hermit crab as a guinnea pig for the rest of civilization wondering the same thing, then report back to us!
Nothing really. It is probably molting or just trying to get some shade. Look up " What should you do when your hermit crab is molting? " for what to do when your hermit crab is molting. Or just type in " molting " to know what molting is.
I think that the fish rock might be a little too hard for your hermit crab because he needs soft enough sand to be able to molt and when they molt their skin is sensitive so the fish rock will probably make him uncomfortable.
You can tell a land hermit crab from a water hermit crab by looking at the claws/arms or legs. If it is a water crab it will be blueish and if land crab it will be pinkish purpleish. If your crab is a water crab don't just throw it in water and leave it there, put a tiny bowl in it's tank or cage that is low to the ground and make sure that the water level is a bit lower than the hermit crabs top of its legs. Also have a wet sponge for each kind of hermit crab in the crabs tank.
No! They love sand but you can only use coconut fiber or sand, i mix them together