Red Clawed Crab

Picture of Red Clawed Crab

Description of the Red Clawed Crab

The Red Clawed Crab is an interesting and useful addition to any marine aquarium. In their natural environment they spend their time foraging for food and will eat any unwanted food in the tank helping to keep it clean. Like other crabs in order to grow, they must shed their exoskeleton and will hide in a cave or rock crevice for a few days until their new shell hardens.

Picture of a Red Clawed Crab

Red Clawed Crab

Facts - Information - Picture - Video

Popular Name: Red Clawed Crab
Species: Perisesarma bidens

Profile of the Red Clawed Crab
This Profile contains interesting facts and information about the Red Clawed Crab species.

  • Size: Up to 10cm

  • Fish Tank conditions: PH 7.5 to 8.5 Temp: 24 to 27 Degrees

  • Diet / Feeding: Brine Shrimps, Bloodworms, Flake Food

  • Temperament: Aggressive to other crabs

  • Habitat: Caves and Rock Crevices

  • Behaviour: A great climber, ensure the tank has a lid.

  • Range: Indo-Pacific

Scientific Classification of the Red Clawed Crab
Definition: Scientific classification, or biological classification, is how biologists group and categorize species of organisms with shared physical characteristics. Scientific classification belongs to the science of taxonomy.

  • Species: Perisesarma bidens

  • Popular Name: Red Clawed Crab - Red Crab

  • Kingdom: Animalia

  • Phylum: Arthropoda

  • Class: Malacostraca

  • Order: Decapoda

  • Family: Sesarmidae

Interesting Facts and Information - How do you identify the sex of a Red Clawed Crab?
The males and females of many fish species have different colors or different shaped bodies. But there are also other fish species where there is no visible difference. Its sometimes tricky being an ichthyologist!

Interesting Facts and Information - Why does the Red Clawed Crab have an Exoskeleton?
A crabs shell is an exoskeleton. An exoskeleton protects the crustacean from predators and is also used for sensing and feeding. The exoskeleton grows and hardens and is eventually shred when the carpace becomes too small. The carpace is the upper section of the exoskeleton.


Interesting Facts and Information - Why is the Red Clawed Crab called an Arthropod?
An Arthropod is an invertebrate animal (without a backbone) that has a segmented body with jointed limbs (appendages). True crabs are Decapod Crustaceans. Some species such as Hermit crabs, Porcelain crabs King crabs and Horseshoe crabs are not true crabs!  Decapod Crustaceans have five pairs of legs, the first three are used for feeding. At the end of the limbs are the chelae which is the correct term for pincers or claws.

Interesting Facts and Information about Red Clawed Crab

Red Clawed Crab

  • Interesting Information about Red Clawed Crab

  • Facts about Fish Species - What are Crustaceans?

  • Why do the Crustaceans have an exoskeleton (external skeleton)?

  • Facts about Fish Species - Why are Crustaceans called Arthropods?

  • Species: Perisesarma bidens

Fish Species

Picture of Red Clawed Crab

Red Clawed Crab

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