Common name: Coleman Shrimp

Scientific name: Periclimenes colemani Bruce, 1975

General Information

Coleman Shrimp (Periclimenes colemani) is a fascinating and visually striking species known for its symbiotic relationship with fire urchins. This small shrimp is adorned with bold brown to red markings, making it a captivating addition to any marine aquarium. Its unique appearance and behavior have made it a favorite among hobbyists who appreciate the intricacies of marine symbiosis.

Coleman Shrimp is relatively rare in the aquarium trade, primarily due to its specific habitat requirements and the challenges associated with collecting them from the wild. They are often found in association with their host, the fire urchin, in the tropical waters of the Indo-Pacific region.

Details

Estimated price
Moderate
Recommended minimum tank volume
40 liter (11 gallons)
Salinity
S.G. 1.024 to 1.026
Temperature
24 to 27 °C (75 to 81 °F)
Acidity
pH 8 to 8.4
Average size
3 cm (1¼″)
Care level
Moderate to difficult Requires specific symbiotic conditions with fire urchins
Diet
Carnivore Feeds on host urchin's mucus and small planktonic organisms
Reefsafe
Yes
Aggression
Peaceful
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Arthropods
    Arthropoda
  3. Class
    Malacostracans
    Malacostraca
  4. Order
    Decapods
    Decapoda
  5. Family
    Palaemonid Shrimp
    Palaemonidae
  6. Genus
    Glass Anemone Shrimp
    Periclimenes
  7. Species
    Coleman Shrimp
    Periclimenes colemani Bruce, 1975
  8. Source: GBIF | Global Biodiversity Information Facility

Care

Caring for Coleman Shrimp requires an understanding of their symbiotic relationship with fire urchins. They must be housed with a compatible urchin species to thrive. The aquarium should replicate their natural environment, with stable water parameters and plenty of live rock to provide hiding spots.

These shrimp are relatively hardy if their symbiotic needs are met. They require a mature tank with stable conditions and should be introduced carefully to minimize stress. Regular monitoring of water quality and maintaining a clean environment are crucial to their health.

Diet and Feeding

Coleman Shrimp are carnivorous and primarily feed on the mucus and tissue of their host urchin, along with small planktonic organisms. In captivity, they can be fed a diet of finely chopped seafood, such as shrimp or fish, along with commercial foods designed for carnivorous marine species. Feeding should be done sparingly, ensuring that the shrimp receive enough nutrition without overfeeding.

Behavior and Compatibility

These shrimp are generally peaceful and can coexist with other non-aggressive species. However, their symbiotic relationship with fire urchins means they should not be housed with species that may pose a threat to their host. Ensuring a peaceful environment is key to their well-being.

Symbiosis

Coleman Shrimp is best known for its mutualistic relationship with fire urchins, such as the Asthenosoma varium. The shrimp finds protection among the urchin's spines, while the urchin benefits from the shrimp's cleaning habits, as it removes parasites and debris from the urchin's body.

Health and Common Issues

Maintaining the health of Coleman Shrimp involves ensuring their symbiotic relationship with fire urchins is supported. Stress from transport or improper tank conditions can lead to health issues. Providing a stable environment and monitoring for signs of stress or disease are essential practices.

When selecting a Coleman Shrimp, look for active individuals with clear coloration and intact appendages. Avoid shrimp that appear lethargic or have visible signs of damage or disease.

Habitat

Naturally, Coleman Shrimp are found in the warm, shallow waters of the Indo-Pacific, often residing with their fire urchin hosts in coral reef environments. They prefer areas with plenty of hiding spots and stable conditions, which should be replicated in captivity to ensure their comfort and well-being.