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The Blue Leg Hermit Crab (Clibanarius tricolor) is a popular and beneficial addition to saltwater aquariums, valued for its scavenging behavior and striking blue coloration on its legs. Here are some details:



  • Average Size: Usually up to 1 inch
  • Lifespan: 1-2 years



  • Bright blue legs with a reddish-brown body and distinctive, asymmetrical claws.
  • Active scavenger, helping to clean detritus and algae in the aquarium.



  • Found in the coastal waters of the Caribbean and the Gulf of Mexico.



  • Generally peaceful and helpful in cleaning up uneaten food and algae.
  • May molt periodically to grow.


Tank Size:

  • Suitable for reef aquariums and marine tanks of various sizes.


Care Level:

  • Easy.
  • Requires appropriate water conditions with good water quality.



  • Omnivorous scavenger. Feeds on detritus, algae, and may consume leftover food.


Water Parameters:

  • pH: 8.0-8.4
  • Temperature: 72-78°F
  • Salinity: 1.023-1.025
  • Hardness: 8-12 dKH



  • Provide a variety of shells for them to choose from as they grow.
  • Ensure sufficient hiding spots and crevices.



Please note that these are general guidelines, and for more accurate values, we encourage you to contact Living Aquarium by phone or in person. Our team of experts is always happy to provide personalized guidance and answer any questions you may have about caring for your tank.

Blue Leg Hermit Crab

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