No. Hermit Crabs need a substrate that will allow them to bury themselves. They cannot bury themselves in gravel. I suggest sand, but it can get messy and attract sand fleas. A ggod idea is to look for substrates out here that are "hermit crab friendly". There are several and a great brand is "T-Rex" or "ReptileSupply.com" since most reptile supply companies also make products for Hermit Crabs because they need similar habitats.
Sand, or fine gravel on the bottom of an aquarium, or a screen cage is ideal. You need to keep the cage temperature at least at 72 degrees Fahrenheit. The humidity level is best a 70%. The habitat for you hermit crab should have a moist warm feel, this will keep the gills of the hermit crab in check. Keep a spray bottle of fresh water handy and periodically spray your hermit crab habitat with it.
yes
the hermit crab cage is not big enough nor does it have propr ventilation for a turtle. at pet smart they have very cheap turtle cages.
You get distilled or spring water and mist the cage LIGHTLY and mist the hermit crab LIGHTLY make sure your hermit crab is never dripping wet when you mist it.
No, hermit crab mites are specific to hermit crabs and will not harm you or your pets.
three dollars if you want a hermit crab without a cage, and 33 dollars if you want a hermit crab with a cage.
3 times a day
some of them
pull it of
a small cage, like a plastic fish tank with rocks
yes although it would be wise to clean and disinfect it first, you don't know why your old crab might have died.
When ever a hermit crab grows out of its old shell it finds a new one to call home. There is no set amount of times a hermit crab will change its shells. The hermit crab will only change shells if it has grown to big for its original one. Otherwise, the hermit crab will not change shells. It all depends on the hermit crab's growth rate and size.