Crabs

Found in nearly all marine environments, Crabs can range from less than an inch to over 12 inches in diameter. Crabs are scavengers of any type of edible matter they find, providing an invaluable "cleaner" function, consuming both undesirable algae and detritus while mixing the sand.

 Thumbnail Arrow Crab
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The Arrow Crab, also known as the Spider Crab, has extremely long legs. It is called the Arrow Crab because of the shape of the body and head. The size is variable, many reaching... [Read more]



 Thumbnail Decorator Arrow Crab
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The Decorator Arrow Crab, also known as the Spider Crab, has extremely long legs. It is called the Arrow Crab because of the shape of the body and head. The size is variable, many... [Read more]



 Thumbnail Dwarf Blue Leg Hermit Crab
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Don't let the small size of the Dwarf Blue Leg Hermit Crab fool you. As a voracious scavenger, this omnivore can get into the smallest crevices and openings within live rock to... [Read more]



 Thumbnail Dwarf Red Tip Hermit Crab
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The Dwarf Red Tip Hermit Crab is a voracious scavenger. Like its Blue Leg cousin, the Dwarf Red Tip Hermit Crab serves as an ideal member of your marine or reef aquarium's cleanup... [Read more]



 Thumbnail Dwarf Yellow Tip Hermit Crab
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The Dwarf Yellow Tip Hermit Crab is one of the more uniquely colored members of the Diogenidae family. The bright yellow bands on its green to black legs add a pop of color to... [Read more]



 Thumbnail Dwarf Zebra Hermit Crab
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The Dwarf Zebra Hermit Crab is one of the most popular hermit crabs for the home marine aquarium. It gets its name from its distinct coloration. Calcinus laevimanus is named for... [Read more]



 Thumbnail Electric Blue Hermit Crab
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The Electric Blue Hermit Crab, a very rare find, originates exclusively from the Marshall Islands. This crab has electrifying blue legs with black banding, and its antennae stand... [Read more]



 Thumbnail Electric Orange Hermit Crab
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The Electric Orange Hermit Crab is a colorful cleaner for the marine aquarium. It has bright orange legs with brown banding. Unlike many members of the Diogenidae family, however,... [Read more]



 Thumbnail Emerald Mithrax Crab
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The Emerald Mithrax Crab is well respected for its scavenging ability. It will enthusiastically feed on uneaten meaty foods and many types of nuisance algae. Unlike many other... [Read more]



 Thumbnail Sally Lightfoot Crab
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The Sally Lightfoot Crab is also known as the Nimble Spray, Short, or Urchin Crab. It has a brown body, with orange to yellow rings on the legs. It actually belongs to a family... [Read more]



 Thumbnail Scarlet Reef Hermit Crab
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It is easy to see why the Scarlet Reef Hermit Crab is one of the most popular reef maintenance animals. Paguristes cadenati is very hardy and requires minimal care in a well-established... [Read more]



 Thumbnail Spider Decorator Crab
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The Spider Decorator Crab, also known as Camposcia Decorator Crab or Decorator Crab, is a member of the Majidae family of spider and decorator crabs. It decorates its brown body... [Read more]