Saltwater Aquarist

Lyretail Anthias

(Pseudanthias squamipinnis)

Lyretail Anthias

Species Description…

Scientific Name: Pseudanthias squamipinnis
Common Name: Lyretail Anthias
Species Group: Anthias
Habitat: Reef Safe
Care Level: Intermediate
Temperament: Peaceful
Diet Type: Carnivore
Role in Aquarium: Schooling Fish
Max Fish Length: 4 (inches)
Min Aquarium Size: 75 (gallons)
Native Range: Indo-Pacific

Overview

  • Native to the Indo-Pacific region, commonly found on outer reef slopes and drop-offs.
  • Males are bright orange to reddish-orange with long trailing fin extensions; females are yellow-orange and more slender.
  • Highly active and social schooling fish that prefer to stay in the mid-water column.
  • Ideal for intermediate aquarists due to specific dietary and environmental requirements.

Feeding

  • Planktivorous; naturally feeds on zooplankton in the water column.
  • Provide a diet of mysis shrimp, brine shrimp, finely chopped seafood, and high-quality plankton-based foods.
  • Feed small amounts 2–3 times daily to mimic natural feeding behavior.
  • A consistent, high-protein diet supports vibrant coloration and energy levels.

Habitat

  • Requires a minimum tank size of 75 gallons, with plenty of open swimming space and rock structures for shelter.
  • Thrives in well-oxygenated water with stable parameters and mature biological filtration.
  • Moderate to strong water movement simulates natural reef environments.
  • Low to moderate lighting helps reduce stress and mimics their natural habitat.

Fish Care

  • Preferred temperature range: 72–78°F (22–26°C).
  • Ideal pH: 8.1–8.4; specific gravity: 1.020–1.025.
  • Sensitive to sudden parameter shifts; maintain regular water changes and consistent monitoring.
  • Observe for signs of stress or disease; quarantine new additions when possible.

Compatibility

  • Peaceful and best kept in harems with one male and several females to maintain social hierarchy.
  • Reef-safe and compatible with corals and ornamental invertebrates.
  • Compatible with other peaceful reef fish, such as wrasses, gobies, firefish, and tangs.
  • Avoid aggressive or highly territorial tank mates that could stress or outcompete them.

Aquarium Behavior

  • Highly active mid-water swimmers that display best behavior in groups.
  • Males may become territorial with one another in smaller aquariums.
  • Social structure and space play a large role in maintaining harmony within groups.
  • Coloration intensifies and natural schooling behaviors are more visible in a low-stress, well-maintained reef environment.