Common name: Dispar Anthias

General Information

The Dispar Anthias (Pseudanthias dispar) is a stunning and graceful addition to any reef aquarium. Known for its vibrant peach to pinkish-orange coloration, this species is a favorite among aquarists for its active swimming behavior and striking appearance. Males often display a more intense coloration, with a hint of lavender or purple on their dorsal fin, making them particularly eye-catching.

Native to the Indo-Pacific region, the Dispar Anthias inhabits coral reefs and lagoons, often forming large schools in the wild. This social behavior makes them an excellent choice for aquarists looking to add a dynamic and lively group of fish to their tanks. Their peaceful temperament and compatibility with other reef-safe species further enhance their appeal.

While they are sometimes confused with other anthias species, such as Pseudanthias squamipinnis, the Dispar Anthias can be distinguished by its more slender body shape and unique coloration. Their schooling behavior and vibrant hues make them a captivating sight in any aquarium.

Care

Dispar Anthias require a well-established reef tank with plenty of swimming space and hiding spots. They thrive in tanks with live rock structures that mimic their natural habitat, providing both security and areas to explore. A tank volume of at least 300 liters (80 gallons) is recommended for a small group, as these fish are best kept in schools of 5 or more to replicate their natural social structure.

Stable water parameters are crucial for their well-being, as they are sensitive to fluctuations. Ensure proper filtration and regular water changes to maintain pristine conditions. Moderate water flow and lighting that mimics their natural reef environment will help them feel at home.

Diet and Feeding

In the wild, Dispar Anthias are planktivores, feeding on zooplankton and other small organisms. In captivity, they require a varied diet to meet their nutritional needs. Offer a mix of high-quality frozen foods such as mysis shrimp, brine shrimp, and finely chopped seafood, along with marine-specific pellets or flakes. Enriching their diet with vitamins will support their vibrant coloration and overall health.

Feed them small portions multiple times a day, as their high metabolism requires frequent feeding. Observing their feeding behavior can help ensure all individuals in the school are getting enough food, especially in larger groups.

Behavior and Compatibility

Dispar Anthias are peaceful and social fish, making them ideal for community reef tanks. They thrive in groups, where a dominant male will often display brighter colors and lead the school. To maintain harmony, it is best to keep one male with multiple females, as males can become territorial towards other males in confined spaces.

They are compatible with a wide range of reef-safe fish, invertebrates, and corals. Avoid housing them with overly aggressive species that may outcompete them for food or stress them out. Their active swimming and schooling behavior add a dynamic element to the aquarium, making them a joy to watch.

Reproduction

Like many anthias, Dispar Anthias are protogynous hermaphrodites, meaning all individuals are born female, with the ability to transition to male if needed. In a group, the largest and most dominant individual will become the male. Breeding in captivity is challenging but not impossible, requiring a dedicated setup and careful attention to water quality and diet.

The female lays eggs in open water, which are then fertilized by the male. The eggs and larvae are planktonic, requiring specialized care and feeding with rotifers and other microscopic foods during the early stages of development.

Health and Common Issues

With proper care, Dispar Anthias can live for several years in captivity. Choosing healthy specimens is key—look for active, alert fish with vibrant colors and no signs of disease. Avoid individuals that appear lethargic or have visible damage to their fins or scales.

Maintaining stable water parameters, a varied diet, and a stress-free environment will help prevent common health issues. They can be susceptible to marine ich and other parasitic infections, so quarantining new additions and observing for signs of illness is recommended. Prompt treatment with appropriate medications can address most health concerns.

Habitat

Dispar Anthias are native to the Indo-Pacific region, including areas such as Indonesia, the Philippines, and the Maldives. They are typically found in coral-rich areas of reefs and lagoons, often at depths ranging from 10 to 40 meters (35 to 130 feet). Their natural habitat is characterized by warm, clear waters with moderate currents, which should be replicated in the home aquarium to ensure their comfort and well-being.