Common name: Squat Lobster

General Information

The Chirostylus dolichopus, commonly known as the Squat Lobster, is a fascinating crustacean that often captures the attention of marine enthusiasts. Despite its name, it is not a true lobster but is more closely related to hermit crabs and porcelain crabs. This species is known for its elongated claws and compact body, which give it a unique and endearing appearance. Squat lobsters are typically found in deep-sea environments, often associated with coral reefs or rocky substrates.

While not as commonly kept as other marine invertebrates, the Squat Lobster has gained some popularity among advanced aquarists due to its intriguing behavior and striking appearance. Its role in the ecosystem is equally captivating, as it often acts as a scavenger, helping to clean up detritus and leftover food in its environment.

Physically, Chirostylus dolichopus is characterized by its vibrant coloration, which can range from reddish hues to orange and even white patterns. Its long, slender claws are a distinguishing feature, often used for feeding and defense. These lobsters are relatively small, making them suitable for nano or species-specific tanks, provided their care requirements are met.

Care

Caring for a Squat Lobster requires attention to detail, as they are sensitive to water quality and environmental changes. They thrive in tanks with plenty of live rock and crevices, which provide hiding spots and mimic their natural habitat. A well-established aquarium with stable parameters is essential for their health.

These lobsters are generally peaceful but may show territorial behavior towards other crustaceans or similarly sized tank mates. They are best kept in tanks with non-aggressive species to avoid stress or competition.

Diet and Feeding

In the wild, Chirostylus dolichopus is a scavenger, feeding on detritus, algae, and small invertebrates. In captivity, they should be offered a varied diet that includes high-quality sinking pellets, frozen foods like mysis shrimp, and occasional algae wafers. Feeding them once a day is sufficient, but ensure that food reaches their level in the tank to prevent starvation.

Behavior and Compatibility

Squat Lobsters are generally peaceful and can coexist with a variety of tank mates, provided they are not overly aggressive or predatory. They are shy creatures that spend much of their time hiding in crevices or under rocks, emerging primarily during feeding times. Their behavior is fascinating to observe, as they use their elongated claws to sift through substrate and capture food.

While they are not toxic, care should be taken when introducing them to tanks with larger, more aggressive species that might view them as prey. They are best suited for peaceful community tanks or species-specific setups.

Symbiosis

One of the most intriguing aspects of Chirostylus dolichopus is its symbiotic relationships. In the wild, it is often found living in close association with deep-sea corals or sponges, where it finds shelter and protection. This relationship is mutualistic, as the lobster helps keep the coral clean by feeding on detritus and other organic matter.

In captivity, replicating this symbiosis can be challenging but rewarding. Providing live rock with coral or sponge growth can help mimic their natural environment and encourage natural behaviors.

Health and Common Issues

Maintaining optimal water quality is crucial for the health of Chirostylus dolichopus. They are sensitive to fluctuations in salinity, temperature, and pH, so regular monitoring and maintenance are essential. When selecting a Squat Lobster, look for active individuals with intact claws and vibrant coloration, as these are signs of good health.

Common issues include stress from aggressive tank mates, poor water quality, and insufficient food. Addressing these factors promptly can help ensure a long and healthy life for your Squat Lobster.

Habitat

The natural habitat of Chirostylus dolichopus includes deep-sea coral reefs and rocky substrates, often at depths exceeding 100 meters. They are distributed across various regions of the Indo-Pacific, where they play a role in the benthic ecosystem as scavengers and cleaners.

In captivity, replicating their natural habitat involves creating a tank with plenty of live rock, crevices, and low to moderate water flow. The presence of corals or sponges can enhance their environment and encourage natural behaviors.