What are some adaptations of the hermit crab?

Distilled water in a bowl, SEA salt water in a diffrent bowl, and a bowl of food (fruits and veggies).

Hermit crabs are very soial so buy at least two. One gallon of space per SMALL hermit crab.

For substrate use coconut husk fiber mixed in with some sand, also have some climbing toys and humidity and temp between 70 and 80% / F.

PLEASE RESEARCH HOW TO CARE FOR HERMIT CRABS.