Scarlet Reef Hermit Crab (Build Your Own Kit) (Paguristes cadenati)

Scarlet Reef Hermit Crab (Build Your Own Kit) (Paguristes cadenati)


  • Water Conditions: 72-78° F, dKH 8-12, pH 8.1-8.4, sg 1.023-1.025
  • Max. Size: 1½”
  • Diet: Herbivore
  • Origin: Caribbean
  • Family: Diogenidae
  • Care Level: Easy
  • Temperament: Peaceful
  • Reef Compatible: Yes


The Scarlet Reef Hermit Crab, sometimes called the Red Reef Hermit Crab or Red Legged Hermit Crab, has red legs and a yellow face. It is found along the reef faces and coral rubble of the Caribbean and Western Atlantic. It scavenges animal matter and algae, but will only grow to 1-1/2 inches in length.

The Scarlet Reef Hermit Crab is best kept in a reef-style aquarium where it will have ample supplies of algae to eat. It is helpful in keeping algae under control, including filamentous algae and Cyanobacteria.

If there is insufficient algae to eat, their diet must be supplemented with dried seaweed. They will also accept many other types of foods.

Approximate Purchase Size: 1/2″ to 1″


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