Common name: Zebra crab

General information

The Zebra Crab, Zebrida adamsii, is a strikingly patterned decapod crustacean known for its distinctive black and white striped pereiopods (legs). It is a small species, typically reaching only a few centimeters in size, which makes it a fascinating addition to any reef aquarium. This crab is not only admired for its unique appearance but also for its interesting behavior and symbiotic relationships.

Care

Zebrida adamsii is a hardy species that can be a good choice for reef aquariums. They require stable water conditions and benefit from plenty of live rock or coral formations to climb on and explore. These crabs are omnivorous scavengers, feeding on a variety of foods including detritus, algae, and meaty foods. It's important to ensure they receive a balanced diet to maintain their health and vibrant coloration.

Reproduction

In the wild, Zebra Crabs are known to reproduce by releasing larvae into the water column, which then go through several planktonic stages before settling down and developing into juvenile crabs. In captivity, breeding Zebra Crabs can be challenging due to the difficulty in rearing the delicate larvae.

Symbiosis

One of the most fascinating aspects of Zebrida adamsii is its symbiotic relationship with sea urchins, particularly those of the genus Toxopneustes. The crab lives among the spines of the urchin, gaining protection from predators due to the urchin's formidable defenses. In return, the crab may help keep the urchin clean by feeding on detritus and parasites that could otherwise harm the urchin.

Habitat

Zebrida adamsii is found in the Indo-Pacific region, from the Red Sea and East Africa to the central Pacific. They are typically associated with coral reefs and often inhabit shallow waters where their host sea urchins are found.