Blue Leg Hermit Crab

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Description:
The Blue Leg Hermit Crab is a small, active, and colorful scavenger commonly found in reef aquariums. Known for its striking blue legs and red body, this hermit crab is an excellent addition to clean-up crews, as it helps maintain tank hygiene by eating algae, detritus, and uneaten food. Its hardy nature and peaceful temperament make it a popular choice for both beginner and experienced marine aquarists.

Care Level:

• Ease: Beginner-friendly.
• Water Conditions:
  • pH: 8.1–8.4.
  • Temperature: 72–78°F (22–26°C).
  • Salinity: 1.023–1.025 specific gravity.
• Tank Requirements:
  • Minimum tank size: 10 gallons.
  • Provide a substrate with plenty of hiding spaces (live rock, caves) and a variety of empty shells for the crab to change into as it grows.

Temperament:

• Behavior: Peaceful, active, and social.
• Compatibility:
  • Ideal for community tanks, as it does well with a wide range of peaceful marine fish, invertebrates, and corals.
  • Can sometimes compete with other hermit crabs or snails for shells, so it's important to provide a variety of shells in the tank.
  • It may occasionally flip over if it finds itself in a tough spot but will right itself without issue.

Size:

• Adult Size: 1–1.5 inches (2.5–3.8 cm).
• Growth: Small and compact, perfect for aquariums of various sizes.

Reef Compatibility:

• Reef-safe and ideal for reef tanks, as it does not damage corals or other invertebrates.
• It helps control algae growth on live rock and glass, but care should be taken to ensure it does not disturb delicate coral species while foraging.

Additional Notes:
Blue Leg Hermit Crabs are opportunistic feeders, mainly eating algae, detritus, and leftover food, which helps maintain a clean environment in the tank. While they can occasionally be seen "climbing" on corals or rocks, they will not harm them. Provide a variety of empty shells to allow for proper molting and shell replacement. These crabs are excellent for adding diversity to the clean-up crew and are fun to watch as they scurry around the tank. With proper care, they can live for several years in a well-maintained reef aquarium.