Common name: Purple Anthias

Care

The Purple Anthias requires a spacious aquarium with plenty of swimming room and live rock for hiding. A tank size of at least 300 liters (80 gallons) is recommended for a small group, as these fish thrive in a social environment. Strong water flow and high oxygen levels are essential to mimic their natural habitat. Stable water parameters, including a consistent temperature and salinity, are crucial for their health.

To replicate their natural environment, aquarists should provide a mix of open swimming spaces and areas with overhangs or caves for shelter. These fish are sensitive to poor water quality, so regular maintenance and water changes are necessary to keep them thriving.

Diet and Feeding

In the wild, Pseudanthias tuka primarily feeds on zooplankton. In captivity, they require a diet rich in protein, including live or frozen foods such as mysis shrimp, brine shrimp, and copepods. High-quality marine pellets or flakes can also be offered but should not be the sole source of nutrition.

Frequent feeding is necessary to meet their high metabolic demands. It is recommended to feed them small portions multiple times a day to ensure they receive adequate nutrition. A varied diet will help maintain their vibrant coloration and overall health.

Behavior and Compatibility

Purple Anthias are peaceful fish that do well in a community reef tank. They are best kept in groups, with one dominant male and several females, as they exhibit a haremic social structure. Keeping them in a group helps reduce stress and encourages natural behaviors.

While generally peaceful, males can display territorial behavior towards other males, especially in smaller tanks. It is advisable to keep only one male per tank unless the aquarium is exceptionally large. They are compatible with other peaceful reef fish but should not be housed with aggressive or overly boisterous species that may outcompete them for food.

Reproduction

Like many anthias species, Pseudanthias tuka are protogynous hermaphrodites, meaning all individuals are born female, and the dominant individual in a group will transition to male. Breeding in captivity is rare but possible under optimal conditions. A stable environment, proper diet, and a well-established social hierarchy are essential for successful spawning.

The female lays eggs in the water column, which are then fertilized by the male. The eggs and larvae are planktonic, making them challenging to rear in captivity due to their specific dietary and environmental needs.

Health and Common Issues

Purple Anthias are sensitive to changes in water quality and can be prone to stress-related illnesses such as ich and bacterial infections. Maintaining stable water parameters and providing a stress-free environment are key to their health. Quarantining new additions and ensuring a varied, high-quality diet can help prevent common health issues.

When selecting a Purple Anthias, look for active individuals with bright coloration and no visible signs of disease. Avoid fish that appear lethargic or have damaged fins, as these may indicate underlying health problems.

Habitat

In the wild, Pseudanthias tuka is found in the Indo-Pacific region, often inhabiting outer reef slopes and drop-offs at depths ranging from 10 to 50 meters. They prefer areas with strong currents and abundant plankton, which they feed on. Replicating these conditions in captivity, including moderate to strong water flow and a diet rich in zooplankton, is essential for their well-being.