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Arrow Crab

Price: $12.95

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Arrow Crabs are scavengers that can be placed in most salt-water aquariums, the only exception being those aquariums that contain triggerfish, or other fish that may be likely prey on them. They are highly sought after for their diet of Bristle Worms and Flat Worms. They are very easy to care for and frequently found hiding in floating Sargassum in Florida and the Caribbean. Only one should be kept per tank.

Crabs belong to the Class Crustacea and Order Decapoda, which is characterized by two pair of antennae, three body parts, and five pairs of legs. The head of a Crab is connected to the thorax and covered by a shell called carapace. They have a smaller abdomen and tail compared to Shrimp and they keep this tucked beneath the carapace. The first pair of their legs are usually developed claws which they use to gather food, use as protection, and to move objects. In order for Crabs to grow they need to shed their exoskeleton, a process called "molting", which allows them to remove their restricting shell and begin a new one. Often times in the home aquarium Crabs will leave this translucent shell in full view so it can serve as a distraction while the Crab finds a hiding place and allows its new shell to harden.