Common name: nimble spray crab

Scientific name: Percnon gibbesi (H. Milne Edwards, 1853)
Percnon gibbesi, urchin crab or nimble spray crab, Costa Blanca, SpainZebra urchin crab
Cangrejo araña. Percnon gibbesi. Especie invasora en el mediterráneo.

General information

The Sally Lightfoot Crab, Percnon gibbesi, is a colorful and active species that adds both aesthetic and functional value to a saltwater aquarium. Known for their agility and speed, these crabs are often seen darting across rocks and sand in search of food. They exhibit a striking coloration with a brown to yellow carapace and bright blue to purple accents on their legs and claws.

Details

Recommended minimum tank volume
75 liter (20 gallons)
Salinity
S.G. 1.020 to 1.025
Temperature
22 to 28 °C (72 to 82 °F)
Acidity
pH 8 to 8.4
Average size
6 cm (2½″)
Care level
Moderate to easy Needs plenty of hiding spots
Diet
Omnivore Algae and meaty foods
Reefsafe
Yes
Aggression
Semi aggresive May be territorial
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Arthropods
    Arthropoda
  3. Class
    Malacostracans
    Malacostraca
  4. Order
    Decapods
    Decapoda
  5. Family
    Dottybacks
    Percnidae
  6. Genus
    Sally Lightfoot Crab
    Percnon
  7. Species
    nimble spray crab
    Percnon gibbesi (H. Milne Edwards, 1853)
  8. Synonyms
    Acanthopus gibbesi H. Milne Edwards, 1853
    Lonchophorus anceps Eschscholtz, 1825
    Plagusia delaunayi Rochebrune, 1883
    Zoea boscii Guérin-Méneville in de la Sagra, 1857

Care

Sally Lightfoot Crabs are relatively easy to care for, provided they have ample space to roam and a variety of surfaces to climb on. They are excellent scavengers, feeding on algae, detritus, and leftover food, which helps keep the tank clean. However, they may also prey on small, slow-moving fish or invertebrates, so tank mates should be chosen with care.

Reproduction

In the wild, Percnon gibbesi breeds seasonally, with females carrying eggs beneath their abdomens until they hatch. In captivity, breeding is less common, but with optimal conditions, it is possible to observe larval stages in the aquarium.

Habitat

Native to the tropical Western Atlantic and the Caribbean, Sally Lightfoot Crabs are found in a range of habitats from rocky shores to coral reefs. They are well-adapted to intertidal zones and can often be seen basking in shallow waters.