Regal Angelfish

Pygoplites Diacanthus
Regal Angelfish - Marinewise © 2024 MarineWise

Quick Facts

Scientific name Pygoplites Diacanthus
Other names Bluebanded Angelfish, Empress Angelfish, Royal Angelfish, Royal Empress Angelfish
Size Up to 25 cm (9.8 in)
Weight Under a kilo (2.2lb)


Habitat & AU Distribution Clear lagoons, reefs, and surge channels.
Depth Range
Regal Angelfish Distribution Australia

Interesting Info

  • The Regal Angelfish are non-migratory, semi-aggressive fish and mostly solitary but can be found in pairs. Young fish stay in the shallows whilst adults can be found in up to 48 m (157 ft).
  • Regal Angelfish like many other angelfish are broadcast spawners, releasing their eggs and sperm towards the top of the water column right before sunset. The fertilised eggs then float with the current and eventually settle on the bottom.
  • Juveniles have a spot towards the back part of their dorsal fin that looks like a fake eye. It fades away once the fish reaches the length of 6 to 7 cm (2.25 to 2.75 in).
  • These fish are omnivores and primarily feed on algae and sponges, but also eat small invertebrates, zooplankton and plants.
  • Estimates on lifespan have them reaching up to 15 years of age.
  • Those that are born female do have the ability to change gender to male
  • The main predators of angelfish include sharks, larger predatory fish and marine mammals.
Species Interaction

Aquarium & Reef

The Regal Angelfish also known as the Bluebanded Angelfish is a popular reef species known for their vibrant orange and blue vertical stripes. Juvenile fish typically stay in the shallows of inner reefs and lagoons whilst adults can be found on the outer reef in caves or crevices.

The fish has a large range across the Red Sea, Indian Ocean, East Africa and the Maldives – stretching all the wat to the Great Barrier Reef and up to parts of Japan.

Scientific Classification

Kingdom: Animalia

Phylum: Chordata

Class: Actinopterygii

Order: Perciformes

Family: Pomacanthidae

Genus: Pygoplites

Species: Pygoplites diacanthus

Conservation Status

Based on the International Union for Conservation of Nature (IUCN), the Regal Angelfish is currently categorised as “Least Concern”(LC).

LC is the lowest category on the scale for risk with “Extinct”(EX) being the highest.

Fish Taste Quality

Regal Angelfish are a edible fish but are not a targeted species for consumption.

Taste Rating: 0/5

How to catch
Regal Angelfish

Catch Difficulty: Easy

Tackle: Running Sinker Rig

Bait: Sponge, Weed, Worms

Popularity: Not targeted

Regal Angelfish
As Aquarium Fish

Care Level: Difficult

Temperament: Semi-Aggressive

Diet: Omnivore

Reef Compatible: Yes

Minimum Tank Size: 120 gallons

Recreational Viewing
- Snorkeling & Scuba

Finding: Easy

Temperament: Semi-Aggressive

Danger: None