Red Leg Hermit Crab

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Paguristes digueti - (Bouvier, 1895)
Red Leg Hermit Crab

These scavengers need a good supply of empty snail shells to accommodate their growth. Alf Jacob Nilsen/Bioquatic Photo

[edit] Overview

This dull red or scarlet hermit prefers animal flesh and will eat small snails, small polyps, or other minute animals, and it will attack, kill, and eat snails and wear their shells. It will attack and remove food from sessile invertebrates like corals, sea anemones, and soft corals. May significantly and negatively impact many other animals found in the system.

Family: Diogenidae

Other common name(s):

Native range:

  • Gulf of California

Habitat: In nature, it is relatively rare on the reef, being more common in sandy areas near the reef.

Maximum length: 6.4 cm (3 in)

Minimum aquarium size: 38 L (10 gal)

Lighting: Immaterial.

Water: Marine 24 °C (297 K, 75 °F) - 28 °C (301 K, 82 °F)

[edit] Feeding

Will scavenge most aquarium foods. Also preys on many smaller animals.

[edit] Aquarium Compatibility

Reef aquarium safe only in concentrations of 1 crab or fewer per 10 gallons.

[edit] Special Care

Provide it with a good supply of empty snail shells to accommodate growth (shells should be larger than the crab’s current shell).

[edit] Notes

This crab is often sold as a beneficial scavenger, but in large numbers it can do a lot of damage in a reef aquarium.

Reference: A PocketExpert Guide to Marine Invertebrates
Image credit: AJN
Text credit: RLS
Facts about Red Leg Hermit CrabRDF feed
Common name Red Leg Hermit Crab  +
Family Diogenidae  +
Genus Paguristes  +
Image credit AJN  +
Lighting Immaterial.  +
Maximum length 3 in  +
Minimum aquarium size 10 gal  +
Native range Gulf of California  +
Reference A PocketExpert Guide to Marine Invertebrates  +
Specific name digueti  +
Text credit RLS  +
Water max temp 301 K (28 °C, 82 °F)  +
Water min temp 297 K (24 °C, 75 °F)  +
Water type Marine  +