Orders placed today will ship Wednesday, February 8th. Later dates available by request.

Free Priority Mail shipping on Cleaner Packages and for orders over $75. Starred* species cannot ship with Priority Mail. Very large orders should go with UPS.

Please wait until it warms up before ordering if you live in ME, MN, MT, SD, WI or WY. We need temperature lows above 20 degrees and highs above 30 degrees to ship safely. 

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Emerald/Ruby Mithrax Crab

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Species Availability:   161
$5.00
Resides : Rocks and horizontal surfaces
Consumes : Hair Algae, Complex Macroalgae and Turf Algae
Max Size (Carapace): 1" or 25mm
Origin : Caribbean
Availability: Always
Warnings : Some have been reported to pick on coral.

Mithrax crabs have dull claws that allow them to scrape algae from your liverock, and are good at removing bubble algae,  hair algae, Dictyota, some species of Caulerpa, and other complex macroalgae. The size of your bubble algae problem will largely determine the amount of emerald crabs that your tank will need to get the job done. Mithrax crabs are omnivores, and will also scavenge for food. They prefer to spend their time on hard surfaces that they can cling to.    

 We recommend more than 5 Emerald Crabs be shipped with UPS

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