Saltwater Fish
Pomacentrus auriventris

Species Description…

Scientific Name: Pomacentrus auriventris
Common Name: Goldbelly Damselfish
Species Group: Damselfish
Habitat: Reef Safe
Care Level: Beginner
Temperament: Semi-aggressive
Diet Type: Omnivore
Role in Aquarium: Community Fish
Max Fish Length: 3 (inches)
Min Aquarium Size: 20 (gallons)
Native Range: Western Pacific, including Indonesia, the Philippines, and Papua New Guinea
Pomacentrus auriventris - Goldbelly Damselfish

Pomacentrus auriventris (Goldbelly Damselfish)

Overview

  • Native to the Indo-Pacific, frequently found in shallow lagoons and coral-rich reefs.
  • Characterized by its striking metallic blue body with a bright golden-yellow belly.
  • Known for being hardy, active, and somewhat territorial; popular among marine hobbyists.
  • Ideal for both beginner and intermediate aquarium enthusiasts due to its resilience.

Feeding

  • Omnivorous; naturally feeds on algae, zooplankton, and small invertebrates.
  • Readily accepts a variety of foods, including marine flakes, pellets, mysis shrimp, brine shrimp, and spirulina-based diets.
  • Feed multiple small meals per day to maintain optimal health and coloration.
  • A varied diet is important for balanced nutrition and vibrant appearance.

Habitat

  • Thrives in smaller aquariums (minimum 30 gallons) with ample swimming space and live rock structures.
  • Stable, mature aquarium conditions essential for long-term health and well-being.
  • Provide plenty of hiding spaces and coral structures to replicate natural reef habitats and manage territorial behaviors.
  • Moderate water circulation and effective filtration are important to maintain water quality.

Fish Care

  • Optimal water temperature: 74-80°F (23-27°C).
  • Recommended pH: 8.1-8.4; specific gravity: 1.020-1.025.
  • Hardy species but sensitive to rapid water changes; regular water testing and routine maintenance essential.
  • Monitor for signs of marine diseases and parasites, prompt intervention helps ensure good health.

Compatibility

  • Semi-aggressive; best housed with similarly sized or slightly larger, robust tank mates.
  • Generally reef-safe; compatible with corals, but may be aggressive toward smaller or more passive fish.
  • Recommended tank mates include other semi-aggressive fish such as clownfish, dwarf angelfish, tangs, and robust wrasses.
  • Typically territorial, especially as they mature; careful introduction and adequate space recommended.

Aquarium Behavior

  • Active swimmer, frequently exploring the tank and engaging with its surroundings.
  • Can become territorial, especially in smaller aquariums; provide ample hiding spaces and territories.
  • Often engages interactively with caretakers, especially during feeding times.
  • Best maintained in environments with clearly defined territories and peaceful tank dynamics.