# Emperor Angelfish (*Pomacanthus imperator*)

The Emperor Angelfish is a large, colorful fish with bold stripes. It is known for its majestic appearance and is often found in deeper waters.

- **Category:** [Fish](https://www.snappit.app/explore/categories/fish)
- **Rarity:** Common
- **Danger:** 2/5 · Low
- **Habitat:** Coral reefs
- **Also known as:** Imperator Angelfish

![Emperor Angelfish](https://res.cloudinary.com/drieglelr/image/upload/v1771425878/objects/4768.jpg)

## Appearance

The Emperor Angelfish has a striking blue body adorned with vivid yellow horizontal stripes and an electric blue mask around its eyes. Its bright yellow caudal fin provides a strong contrast, making it instantly recognizable among reef fish. Juvenile fish have completely different concentric white and blue ring patterns.

## Taxonomy

- **Kingdom:** Animalia
- **Phylum:** Chordata
- **Class:** Actinopterygii
- **Order:** Perciformes
- **Family:** Pomacanthidae
- **Genus:** Pomacanthus

## Interesting facts

- Emperor Angelfish are known to form long-term pairs, swimming together on the reef!
- Juvenile Emperor Angelfish look so different, they were once thought to be a separate species!
- These majestic fish can grow up to 40 centimeters long, almost the length of your forearm!
- They meticulously pick tiny food particles from coral and rocks with their small mouths!

## Special abilities

- **Color Transformer:** Emperor Angelfish can completely change its body pattern and colors as it grows because of specialized cells in its skin.
- **Reef Grazer:** Emperor Angelfish has a strong mouth and teeth that helps them nibble on tough sponges and algae, keeping the reef healthy.
- **Territory Defender:** Emperor Angelfish can fiercely defend its patch of reef because of its instinct to protect food and shelter.

## Measurements & details

- **Length:** 10-40 cm
- **Weight:** 0.5-1.5 kg
- **Lifespan:** 10-20 years
- **Swim Speed:** 1.5 km/h
- **Maximum Depth:** 100 m
- **Water Type:** Saltwater

## Diet & Feeding

This beautiful fish is an omnivore, munching on sponges, tunicates, and algae found on coral reefs.

- **Primary Foods:** sponges, tunicates, algae, hydroids, small crustaceans
- **Foraging Method:** Foraging

## Ecological connections

- **Eaten by:** Whitetip reef shark (*Triaenodon obesus*) — A predator on coral reefs.
- **Eaten by:** Brown-marbled grouper (*Epinephelus fuscoguttatus*) — A larger reef fish predator.
- **Eats:** Yellow tube sponge (*Aplysina fistularis*) — One of its primary food sources.
- **Symbiotic with:** Common cleaner wrasse (*Labroides dimidiatus*) — Receives cleaning services from this small fish.

## Traits

- [Wildlife](https://www.snappit.app/explore/traits/wildlife): Wildlife encompasses all undomesticated animal and plant life existing in their natural habitats.
- [Colorful](https://www.snappit.app/explore/traits/colorful): Colorful describes organisms or objects displaying a wide range of bright and distinct colors.
- [Piscivorous](https://www.snappit.app/explore/traits/piscivorous): Piscivorous organisms are animals that primarily subsist on a diet of fish.
- [Ancient Lineage](https://www.snappit.app/explore/traits/ancient-lineage): This trait signifies organisms belonging to a very old evolutionary group with ancestors dating back millions of years.
- [Longevous](https://www.snappit.app/explore/traits/longevous): This trait characterizes organisms with an exceptionally long lifespan compared to others of their kind.
- [Aquatic](https://www.snappit.app/explore/traits/aquatic): Aquatic habitats encompass environments where organisms live predominantly in water, including oceans, rivers, lakes, and wetlands.
- [Marine](https://www.snappit.app/explore/traits/marine): Marine habitats encompass all saltwater environments of the Earth's oceans, supporting an immense diversity of aquatic life.

## Collections

- [Fish](https://www.snappit.app/explore/collections/fish)

## Safety

**Danger:** 2/5 · Low

Watch quietly from a distance and never try to feed or chase wild animals.

## Frequently Asked Questions

### How to identify Emperor Angelfish?

Look at body shape, where the fins sit and their outline, mouth position, stripes and spots. Young fish and breeding adults can wear different patterns, and aquarium color varieties can look nothing like wild fish. Fish Identifier: upload a photo and compare the visible details.

### How long is Emperor Angelfish?

10-40 cm

### How much does Emperor Angelfish weigh?

0.5-1.5 kg

### How long does Emperor Angelfish live?

10-20 years

### What does Emperor Angelfish eat?

This beautiful fish is an omnivore, munching on sponges, tunicates, and algae found on coral reefs.

### How fast can Emperor Angelfish swim?

1.5 km/h

### Where is Emperor Angelfish usually found?

Coral reefs

### How does Emperor Angelfish hunt?

Foraging

## More Fish

- [Rainbow Trout](https://www.snappit.app/explore/rainbow-trout) (*Oncorhynchus mykiss*)
- [Brown Trout](https://www.snappit.app/explore/brown-trout) (*Salmo trutta*)
- [Brook Trout](https://www.snappit.app/explore/brook-trout) (*Salvelinus fontinalis*)
- [Lake Trout](https://www.snappit.app/explore/lake-trout) (*Salvelinus namaycush*)

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Source: [Emperor Angelfish: Facts & Places to See — Snappit](https://www.snappit.app/explore/emperor-angelfish)