You don't. Never force your crab to do anything. It would rather die than to be forced to eat or come out of it's shell.
crab
food
Get hermit crab food from the pet store.
No
No
food
Algea and muscles
maybe if i force feed it
digs into it with claws
Yes, cats can eat shellfish once in a while, but too much can make them have dihareea.
Hermit crabs are scavengers so in the wild they will climb trees to eat insects and will eat fallen fruit from trees. in captivity you should have a food bowl and change the food once a day. the food you should be fruit and veggies.
they eat stuff