The Scarlet Reef Hermit Crab, scientifically known as Paguristes cadenati, is a fascinating and colorful addition to both fish-only and reef aquariums. Originating from the Atlantic Ocean, these small crustaceans contribute not only to the aesthetics of your tank but also to its overall health. In this article, we'll explore the benefits of keeping Scarlet Reef Hermit Crabs, their natural habitat, lifespan, diet, compatibility with other marine life, and the essential tank parameters for their well-being.