$2.50
When adding a hermit crab to your new desktop ecosystem it is important to provide them with empty shells to move into and is a must have if you add hermit crabs to your tank.
shell sizes are 1/4-1/2 inch for our small hermit tank mates
recommened amount is 3-5 shells per crab (depends on tank size bigger tanks need more shells because crabs are more spread out).
As part of a hermit crabs natural life they are constantly scavenging for food and looking for new homes. They often will fight with other crabs for a new home or kill a snail to steal its shell.
This can be avoided easily by providing empty shells for your hermit crabs in your tank.
Plus it is a joy to see your crabs pick up a new cool looking shell and walk around with it on their back.