Glass tanks (10 gallons per crab) are best – plastic bins lack ventilation.
Secure lid – Hermit crabs are escape artists!
Moist play sand & eco earth (coconut fiber) mix – Ideal for burrowing.
At least 6 inches deep – More for large crabs.
Climbing structures – Driftwood, coral, cholla wood, cork bark.
Hiding spots – Caves, coconut hides, fake plants.
Non-toxic moss – Helps with humidity and burrowing.
Shell shop – A designated area with a variety of extra shells.
Safe: Natural wood, stones, coconut fiber, aquarium-grade items.
Unsafe: Metal, plastic plants, painted decorations, artificial dyes.
Yes! Hermit crabs naturally live in colonies of dozens or even hundreds. A single crab will become lonely, stressed, and may not live as long.
They interact and communicate through chirping (stridulation).
They help each other find shells and maintain social order.
They feel safer in groups and are less likely to be stressed.
Exploring and climbing regularly
Digging and burrowing often
Interacting with tank mates
Eating a variety of foods
Lethargy or lack of movement
Constantly hiding and never exploring
Leaving its shell often (sign of distress or illness)
Tip: Always have at least two or more hermit crabs together to prevent loneliness!