Orders placed today will ship Wednesday, September 29th. Later dates available by request.

Free Shipping on Cleaner Packages and Orders over $65

Species marked with a * cannot ship for free.

If you are in an area experiencing post office delays, please select UPS at checkout.  We need daytime temperatures below 95 degrees to ship live orders with USPS. Shipments to these areas require UPS. 

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Emerald/Ruby Mithrax Crabs*

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Species Availability:   90
$4.50
Quantity Price:
10 - 24 $4.50
25+ $4.00
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.   

Minimum Purchase of 10 for bulk pricing. You can find smaller quantities available here

We recommend orders over 10 to go with UPS or Express Mail.

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