Common name: coleman shrimp

General information

Periclimenes colemani, commonly known as Coleman's Shrimp, is a striking species of commensal shrimp found in the Indo-Pacific region. It is particularly renowned for its symbiotic relationship with the fire urchin, which provides both protection and food for the shrimp. Coleman's Shrimp are relatively small, usually not exceeding 2 centimeters in length, and are characterized by their bright yellow bodies with purple and white markings.

Care

In the aquarium, Coleman's Shrimp require a stable environment with high water quality. They are sensitive to fluctuations in water parameters, so regular monitoring is essential. They prefer to have a host sea urchin, typically a fire urchin like @species:asthenosoma-varium, present in the tank to replicate their natural symbiotic relationship. A varied diet of meaty foods and plankton is recommended to maintain their health and vibrant coloration.

Reproduction

Reproduction in Coleman's Shrimp is not commonly observed in the home aquarium due to their specific symbiotic needs and the difficulty in creating an ideal breeding environment. However, in the wild, they are known to carry their eggs beneath their abdomens until they hatch into free-swimming larvae.

Symbiosis

The most fascinating aspect of Periclimenes colemani is its symbiotic relationship with venomous fire urchins. The shrimp are immune to the urchin's sting and use its spines for protection against predators. In return, the shrimp help keep the urchin clean by removing parasites and leftover food from its surface.

Habitat

Coleman's Shrimp are typically found in the tropical waters of the Indo-Pacific, from Indonesia to the Great Barrier Reef. They inhabit coral reefs and are most often associated with fire urchins, which they use as a mobile home and protection.