Ruby Red Mithrax Crab (Mithrax sculptus)

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Ruby Red Mithrax Crab (Mithrax sculptus)
The Saltwater Ruby Red Mithrax Crab is very similar to the Saltwater Emerald Crab in exception of it being ruby red. It basically has the same diet and will eat most types of algea. They are also very reef safe and a joy to watch in the home aquarium.
COMMON NAME:  Ruby Red Mithrax crab
SCIENTIFIC NAME:  Mithrax sculptus
SIZE AVAILABLE:  ~1/2 inch
MINIMUM TANK SIZE:  1 per 25 gallons
FOOD/DIET:  Omnivore
CARE LEVEL:  Moderately Easy
AVAILABILITY:  Most always available - 99%
*Easy to care for and considered reef safe.
*Recommended stocking is 1 per 25 gallons.
*Also know as the Red Emerald Crab, it is very similar to to the Emerald Crab in most ways.

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As the coral reefs of the world become more endangered, addressing sustainability is the number one concern among coral growers. has been a certified aquaculture facility since 2011. Since receiving our certification, AquariumDepot has increased the number of sustainable products to the marketplace by 90 percent. We also support organizations like, who work directly with conservation groups to sustain the animals and their homes.