Hi Jade, no it will not starve but is it starting to molt chalky eyes and exoskeleton ?/ Is it mite infested or does it have knat maggots? Is it the only crab ib the tank, these will cause leg loss and stress.
I do not mist , if your tank is at the proper humidity level misting is not necessary, in the wild there is no one misting because the humidity is correct. Is your substrate deep enough, do you have extra shells if you do have another crab and no shells they will fight and the looser willl cast off legs.Water down its food si it gets water this way too, offer it tempting food like organic raisins, cooked oatmeal, organic peanut butter with no syrup or sugars.
Crabs can go a while with out eating but I do recommend a once a week dip in its water to hydrate it just in case, that will cut down on handling, get a hygrometer and thermometer too so you will be sure the tank is at its best condition.
It is said that hermits need a weekly bath in luke warm that has been dechlorinated. This is said to clean debris, excrement and keep a good water level in the shell. This is done by dipping the crab into the water allowing it to fill up then tipped so that the water comes out and allowed to dry on their own, the crabs seem to perk up after.
4..The Importance of Clean Dechlorinated Water
The water needs to be dechlorinated. The chlorine, chloramines and heavy metals in most tap water or in water from natural sources can kill hermit crabs by causing the gills to blister (causing eventual suffocation). Aging the water will remove the chlorine, but not chloramines or copper, so you need both products for dechlorinating and removing copper from all water sources you don't know the treatment used before or through what kind of pipes it flowed, distilled water is incomplete for mineral content important for hermit crabs health, bottled water contains magnesium sulfate for better taste that is bad for crabs.Natural well or spring water may be chlorinated at the pumping site,the water may have come in contact with copper pipes and adds toxic copper to water, and will kill invertabrates in both fresh and salt water animals. Fresh dechlorinated water in a non metallic bowl shallow.The "Caribbean" or "Purple Pincher" will do perfectly fine with only fresh water it is nice to have a bowl of salt water for them to choose from too. Buy a specific gravity meter to measure salinity if you are going to keep either crabs. Non metalic Pet bowls for food and water made of plastic,ceramic or plastic Metal is corrosive when in contact with salt water.Allow enough standing water so the hermits can fill their shells with water. Do not wash their water dishes with soap only but rinse it out with dechlorinated water.