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Scarlet Reef Hermit Crab
Paguristes cadenati
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: Small 1.5cm - 3cm
Due to variations within each species, your aquatic life may not look identical to the image provided.

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Fish Statistics
- Minimum Tank Size:
- 60 litres
- Diet:
- Omnivore
- Origin:
- Caribbean
- Temp (C):
- 22-27 C
- Max Size:
- 3 cm
- Family:
- Diogenidae
- Reef Compatible:
- Yes
- Temperament:
- Peaceful
- pH:
- 8.1 - 8.4
- Salinity:
- 1.020-1.025
- Care Level:
- Easy
- Compatibility:
- See Tank Mates Chart below
Buy Scarlet Reef Hermit Crab
Small 1.5-3cm
- 1 to 9 - £2.75
- 10 or more items - £2.50
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Tank Mates
We recommend pairing your Scarlet Reef Hermit Crab with these other fish: