Hermit Crab | Blue Leg Hermit Crab (Clibanarius tricolor)

The Blue Leg Hermit Crab, scientifically known as Clibanarius tricolor, is one of the most popular reef-safe clean-up crew invertebrates in the saltwater hobby. Recognized by its bright blue legs and active personality, this small hermit crab plays an important role in algae control and detritus cleanup.

Blue Leg Hermits are constantly on the move, scavenging leftover food and grazing on nuisance algae. They are best kept in reef and marine aquariums with extra empty shells to prevent aggression toward snails.

Key Characteristics

Bright blue legs with red accents
Excellent algae & detritus grazer
Reef-safe invertebrate
Small size, active behavior
Hardy and beginner-friendly

Care Requirements

• Care Level: Easy
• Temperament: Peaceful (can be opportunistic)
• Adult Size: ~1 inch
• Tank Size: 10 gallons minimum
• Temperature: 7280°F
• pH: 8.18.4
• Salinity: 1.0231.025

🦀 Always provide extra empty shells of various sizes.

Diet & Feeding

Blue Leg Hermit Crabs are omnivorous scavengers.

Diet Includes:

• Film & hair algae
• Leftover fish food
• Algae wafers
• Sinking pellets
• Occasional meaty foods

💡 Supplemental feeding helps reduce snail aggression.

Tank Compatibility

Good Tankmates:

• Reef fish
• Snails (with extra shells provided)
• Shrimp
• Other hermit crabs

Avoid:

• Aggressive fish
• Tanks without spare shells

⚠️ Without extra shells, hermits may steal snail shells.

Reef Compatibility

Reef-safe
Coral-safe
Does not harm live rock

May knock over loose fragssecure corals properly.

Ideal For

• Reef aquariums
• Saltwater clean-up crews
• Algae control support
• Beginner marine hobbyists
• Nano & large reef tanks

Product Details

• Common Name: Blue Leg Hermit Crab
• Scientific Name: Clibanarius tricolor
• Origin: Caribbean
• Aquarium Type: Saltwater / Reef
• Diet: Omnivore
• Temperament: Generally peaceful

FAQs Blue Leg Hermit Crab

Q: Are Blue Leg Hermits reef-safe?
A: Yes. They are reef-safe and coral-safe.

Q: Will they kill snails?
A: They may if extra shells are not available.

Q: How many should I keep?
A: Depends on tank size1 per 510 gallons is common.

Q: Are they good for beginners?
A: Yes. They are hardy and easy to care for.

Q: Do they need special care?
A: Stable salinity and extra shells are the most important needs.

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