Luzon Anthias - Female

The female Luzon Anthias (Pseudanthias luzonensis), also known as the Yellowlined Anthias, is an elegant saltwater fish with soft orange-red to peach coloration, a lighter underside, and rows of subtle yellow markings along the scales. The fins are generally pale yellow to translucent, giving females a refined appearance compared with the stronger red markings and elongated fin development of mature males.

Native to the eastern Indian Ocean and western Pacific, this species ranges from Indonesia east to Fiji and Vanuatu, north to Taiwan and southern Japan, and south to northern Australia. Luzon Anthias inhabit coral reefs and deeper reef slopes, where they remain above the reef structure and capture small zooplankton carried through the water column.

Peaceful toward most unrelated marine aquarium fish, the female Luzon Anthias is an excellent choice for an established reef aquarium or appropriately sized fish-only aquarium. Like other anthias, it benefits from frequent feeding, strong water quality, plenty of open swimming space, and secure retreats. Females also participate in a social hierarchy and may transition into males when the group structure changes.

Quick Care Guide

Care Level: Moderate
Minimum Tank Size: 90 gallons
Temperament: Peaceful
Diet: Carnivore / Planktivore
Reef Safe: Yes
Region: Eastern Indian Ocean & Western Pacific – Indonesia to Fiji and Vanuatu, north to southern Japan and south to northern Australia
Scientific Name: Pseudanthias luzonensis

Tank Requirements

Provide a mature, well-established marine aquarium with generous open swimming space above and around the rockwork. Luzon Anthias are active water-column swimmers and benefit from a long aquarium footprint that allows them to move freely throughout the day.

Arrange live rock to create caves, ledges, overhangs, and shaded retreats without excessively reducing open water. These areas provide secure nighttime shelter and allow subordinate fish to retreat from social interactions when multiple anthias are maintained together.

Moderate to strong, well-distributed water movement is appropriate and helps keep small foods suspended in the water column. Good oxygenation and efficient filtration are especially important because the frequent feeding schedule required by anthias can increase nutrient input.

A securely fitted mesh screen or aquarium lid is recommended, as anthias may jump when startled or chased.

Diet and Feeding

The Luzon Anthias is a carnivorous planktivore that naturally feeds on zooplankton and small crustaceans suspended above the reef.

Offer a varied diet including enriched mysis shrimp, enriched brine shrimp, copepods, calanus, frozen plankton blends, finely chopped marine seafood, and appropriately sized high-quality marine pellets or flakes. Foods that remain suspended in the water column encourage natural feeding behavior.

Provide two to three small meals per day, with additional smaller feedings beneficial when practical. Newly introduced females may initially respond especially well to copepods, mysis shrimp, and other small frozen foods before becoming accustomed to a wider variety of prepared diets.

Temperament and Tankmates

Female Luzon Anthias are generally peaceful toward unrelated community fish. Suitable tankmates include clownfish, gobies, blennies, fairy and flasher wrasses, peaceful angelfish, tangs, and other non-predatory marine species.

Some chasing can occur between anthias as individuals establish a social hierarchy. Subordinate females should always have access to multiple retreat areas, particularly when maintained as part of a group.

A single female may be kept successfully, while larger aquariums can accommodate carefully managed groups. Luzon Anthias are protogynous hermaphrodites, meaning a dominant female may transition into a male when no established male is present. This transition is accompanied by changes in coloration, fin development, and social behavior.

Reef Compatibility

The female Luzon Anthias is considered reef safe and is an excellent choice for coral-dominated aquariums. It does not normally consume or damage stony corals, soft corals, clams, or other sessile reef organisms.

It is also generally compatible with ornamental shrimp, crabs, snails, and other established reef invertebrates. Tiny copepods and other planktonic crustaceans may naturally be consumed as part of its normal diet.

Water Parameters

Temperature: 75–80°F
Specific Gravity: 1.024–1.026
pH: 8.1–8.4
Alkalinity: 8–12 dKH

Maintain stable, well-oxygenated water with consistently good water quality. Effective filtration and regular nutrient management are particularly important because this species benefits from multiple daily feedings. Stability is more important than targeting one exact value within these ranges.

Common Considerations

• Female coloration: Females are typically pale orange-red to peach with yellow scale markings and pale yellow fins.

• Frequent feeding: Benefits from several small meals of plankton-sized, protein-rich marine foods throughout the day.

• Social hierarchy: Some chasing can occur among anthias as dominance relationships develop.

• Sex transition: A dominant female may transition into a male when the social structure of the group changes.

• Active swimming: Requires generous open water along with caves, ledges, and shaded retreats.