Live Arrival & Health Guarantee
Live coral and fish are final sale and covered by our DOA guarantee. A 5-day health guarantee applies to retail orders.
Scarlet Hermit Crabs (Paguristes cadenati) are among the most popular reef-safe clean-up crew members for saltwater aquariums. Known for their bright red legs and peaceful nature, these hermits help control nuisance algae while being gentler on corals and tank mates than many other hermit crab species.
Native to Caribbean reefs, Scarlet Hermit Crabs spend their time grazing on algae, leftover food, and detritus, making them an excellent addition to reef and fish-only saltwater tanks.
Why Choose Scarlet Hermit Crabs?
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Excellent Algae & Detritus Eaters
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Reef Safe – safe with corals and most invertebrates
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Bright Red Coloration
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More Peaceful Than Other Hermit Crabs
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Ideal Clean-Up Crew Member
Care & Tank Requirements
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Scientific Name: Paguristes cadenati
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Common Name: Scarlet Reef Hermit Crab
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Adult Size: Up to 2 inches (including shell)
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Minimum Tank Size: 10 gallons
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Temperament: Peaceful
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Diet: Omnivore – algae, detritus, leftover food
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Reef Compatibility: Fully reef safe
Important Care Notes
Provide extra empty shells in the aquarium to reduce the chance of aggression toward snails. While Scarlet Hermit Crabs are generally peaceful, proper feeding and shell availability are key to long-term success.
If you’re looking for a reef-safe hermit crab for sale that combines effectiveness with vibrant color, Scarlet Hermit Crabs are a trusted and attractive choice for any saltwater aquarium.
