Common name: Hermit Crabs

Calcinus is a genus of hermit crabs commonly found in reef aquariums, known for their striking coloration and active behavior. They play a crucial role in the clean-up crew, scavenging for detritus and uneaten food. These hermit crabs are generally peaceful and can coexist with a variety of tank mates. They require shells of various sizes to accommodate their growth and ensure their protection. Hobbyists appreciate them for their beneficial role in maintaining tank cleanliness and their entertaining antics.

1. 
   Common name: Red-leg Hermit Crab

   Scientific name: Calcinus californiensis
2. 
   Common name: Electric Blue Hermit Crab

   Scientific name: Calcinus elegans
3. 
   Common name: Left-handed Hermit Crab

   Scientific name: Calcinus laevimanus
4. 
   Common name: Orangeclaw Hermit Crab

   Scientific name: Calcinus tibicen