Saltwater Aquarist

Cortez Angelfish

(Pomacanthus zonipectus)

Cortez Angelfish

Species Description…

Scientific Name: Pomacanthus zonipectus
Common Name: Cortez Angelfish
Species Group: Angelfish
Habitat: Reef Safe with Caution
Care Level: Advanced
Temperament: Semi-aggressive
Diet Type: Omnivore
Role in Aquarium: Showpiece Fish
Max Fish Length: 24 (inches)
Min Aquarium Size: 250 (gallons)
Native Range: Eastern Pacific, from the Gulf of California to Peru

Overview

  • Native to the Eastern Pacific, primarily found along rocky reefs from the Gulf of California to Peru.
  • Notable for its striking coloration, including a dark blue body with vertical yellow stripes and blue highlights on fins.
  • Known for its bold and inquisitive personality, popular among marine aquarium enthusiasts.
  • Requires moderate care, making it suitable for intermediate aquarists.

Feeding

  • Omnivorous; natural diet includes sponges, algae, tunicates, and small marine invertebrates.
  • Readily accepts various aquarium foods such as marine algae, angelfish-specific diets, mysis shrimp, brine shrimp, and chopped seafood.
  • Feed multiple times daily to maintain optimal health and vibrant colors.
  • Include algae and sponge-based supplements in diet for balanced nutrition.

Habitat

  • Requires a spacious aquarium (minimum 150 gallons) with ample swimming space and well-structured live rock formations.
  • Stable, mature aquarium environment essential for long-term health.
  • Provide plenty of caves, crevices, and territories to manage territorial behaviors and stress.
  • Strong filtration and moderate water circulation needed to maintain excellent water quality.

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 sudden changes in water parameters; regular testing and consistent maintenance necessary.
  • Monitor for common marine diseases and parasites; early intervention crucial for good health.

Compatibility

  • Semi-aggressive; best kept with similarly sized and robust fish species.
  • Generally not reef-safe; known to nip at corals, sponges, and decorative invertebrates.
  • Ideal tank mates include large tangs, wrasses, groupers, and other semi-aggressive marine species.
  • Territorial, especially towards other angelfish; adequate space and careful introductions are recommended.

Aquarium Behavior

  • Active and curious, often seen swimming openly and exploring surroundings.
  • Displays territorial and assertive behavior, especially in smaller aquariums.
  • Interactive and often responsive to caretakers, particularly during feeding sessions.
  • Providing ample hiding spaces and clearly defined territories helps manage aggression and stress.