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Mithraculus sculptus
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Information
Common Name Emerald crab, green clinging crab.
Scientific Classification
Kingdom Animalia
Class Malacostraca
Order Decapoda
Family Majidae
Species M. sculptus
Mithraculus sculptus (common names: Emerald crab, green clinging crab), is a species of crab native to the Caribbean Sea. It is often kept in marine aquariums to keep them clean, but the Emerald crab is known to attack and kill smaller tank mates then himself.

The Emerald crab is nocturnal and hides most of the day in caves in reef rocks. But sometimes is active during the day.

In Aquariums

The Emerald crab is said to be "reef safe", but is known for it's ability to kill and consume smaller animals that live with it in the tank. It is very common in fish tanks, and most aquariums have them. Because they are known to eat bubble algae and clean the tank.

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