Rock Shell Hermits

The Emerald Crab, also known as the Mithrax Crab, is a popular saltwater aquarium crab species. As its name suggests, it has a bright green coloration that makes it stand out in a tank. It has a compact, flattened body with two large front claws that it uses to scavenge for food and defend itself from predators. These Crabs are generally peaceful and can be kept with a variety of other marine species, but they may become aggressive towards other crabs or invertebrates if they feel threatened or if food is scarce. They are known for their ability to eat algae and detritus, making them popular among aquarists for their role in keeping tanks clean. In the wild, Emerald Crabs can be found in the intertidal zone of rocky reefs and tide pools in the Indo-Pacific region. They are nocturnal and will often hide during the day, so providing plenty of hiding places in the aquarium is important for their well-being.