Saltwater Aquarist

Bartlett’s Anthias

(Pseudanthias bartlettorum)

Bartlett’s Anthias

Species Description…

Scientific Name: Pseudanthias bartlettorum
Common Name: Bartlett’s Anthias
Species Group: Anthias
Habitat: Reef Safe
Care Level: Intermediate
Temperament: Peaceful
Diet Type: Carnivore
Role in Aquarium: Schooling Fish
Max Fish Length: 3 (inches)
Min Aquarium Size: 55 (gallons)
Native Range: Western Pacific, including Palau and the Marshall Islands

Overview

  • Native to the Pacific Ocean, particularly common in coral reefs around the Marshall Islands and the Central Pacific.
  • Features a striking coloration with vibrant yellow body, purplish-red upper half, and striking lavender highlights on fins.
  • A schooling species known for their peaceful, active, and social behavior.
  • Ideal for community reef aquariums, often kept in small groups for best results.

Feeding

  • Primarily planktivorous; naturally consumes zooplankton and small crustaceans.
  • Readily accepts frozen and dried aquarium foods such as mysis shrimp, brine shrimp, plankton, and high-quality flake or pellet foods.
  • Feed multiple small meals daily to ensure adequate nutrition and coloration.
  • Variety in diet essential to maintain optimal health.

Habitat

  • Prefers a moderately sized aquarium (minimum 70 gallons) with plenty of open swimming space and live rock formations.
  • Stable, mature aquarium conditions with excellent water quality are vital.
  • Provide plenty of hiding spots and coral structures to mimic their natural reef environment.
  • Moderate water flow and good filtration required to maintain optimal water parameters.

Fish Care

  • Optimal water temperature: 72-78°F (22-26°C).
  • Recommended pH: 8.1-8.4; specific gravity: 1.020-1.025.
  • Sensitive to water fluctuations; regular testing and consistent water maintenance necessary.
  • Generally hardy but should be monitored for common marine diseases.

Compatibility

  • Peaceful; best housed with other non-aggressive species.
  • Ideal for reef aquariums, safe with corals and ornamental invertebrates.
  • Recommended tank mates include other anthias species, small reef-safe wrasses, clownfish, gobies, and chromis.
  • Should be kept in groups, ideally one male with multiple females to prevent aggression.

Aquarium Behavior

  • Active swimmers, often seen swimming in open water above reef structures.
  • Highly social, best kept in groups to showcase natural behavior and reduce stress.
  • Generally peaceful, though males may exhibit mild territorial behavior in smaller tanks.
  • Providing ample swimming space and hiding spots reduces aggression and promotes well-being.