There are many species of crabs, and differing sizes of claws. So a definitive answer can not be given, without more information.
for defending themselves from prey
Males do it to attract a mate.
tereit
yes that is what they use to eat
There are aquatic and land hermit crabs. Some land hermies are the Purple Pincher (PP & the most common) and the strawberry hermit crab.
With their claws- they usually use the small pincher for that and the large for defense.
No, it's fine. You just must have purple pincher hermit crabs (also called Caribbean crabs). I have 3 hermit crabs, all purple pinchers. Their claws are red with purple in the center and their legs have a purple-ish & red-ish hue. No worries, that's just the type of crabs they are. Purple pincher crabs are the most common to buy in pets stores.
If you go to buy hermit crabs at a store, you're most likely getting purple pincher crabs (also called Caribbean Crabs)
purple pincher hermit crabs, you can tell this crab apart from other because they have a purple pincher. these need fresh water so the water we drink is the water they need to drink all other type of hermit crabs need salt water
no they use their pincher's and then put it in their mouth...BY MACY SMITH
Your hermit crab is pink because it just molted. hermit crabs are vertibrates which means they need to molt to grow. hermit crabs burrow underground to molt and stay their for a week to months.
Normally the hermit crab is the only one kept as a pet.