King angelfish
Holacanthus passer
Also known as Passer Angelfish, King Passer Angelfish, King Angel
SaltwaterFish
Care at a glance
- Temperature
- 72–81°F
- 22–27°C
- pH
- 8.1–8.4
- Adult size
- 13.8 in
- 35 cm
- Minimum tank
- 151 gal
- 570 L
- Temperament
- Aggressive
- Social behavior
- Solitary
- Own kind
- One per tank
- Tankmates
- With caution
- Swim level
- Middle
- Difficulty
- Medium
- Breeding
- No record
- Rarity
- Common
- Reef safe
- Reef safe with caution
- Family
- Pomacanthidae
- Origin
- Eastern Pacific from the Gulf of California to Peru, including the Galapagos, over rocky reefs.
Overview
Give a king angel at least 570 litres with rock caves and open swimming space at 22 to 27 C and pH 8.1 to 8.4. It is a hardy eater that takes spirulina, marine algae, mysis and angelfish preparations, but it is aggressive, so keep one per tank and choose robust tankmates. It will nip stony and soft corals and clam mantles, making it reef safe only with caution. Add it as one of the last fish so it cannot claim the whole tank.
In the wild
The king angelfish is a bold eastern Pacific angel with a blue-grey body, orange tail and a single white bar. It patrols rocky reefs and cleans parasites off other fish when young. Adults are dominant and territorial. It comes from cooler, productive waters than most tropical angels.
Good to know
Holacanthus passer grows to about 35 cm and ranges along the eastern Pacific coast. Juveniles act as cleaner fish, picking parasites from larger species. It tolerates slightly cooler water than most reef angels.
Did you know
Young king angels run cleaning stations, plucking parasites from fish many times their size.
Common questions
What size tank does a King angelfish need?
A King angelfish needs at least 151 gal (570 L). It spends most of its time in the middle.
What temperature and pH does a King angelfish need?
A King angelfish is comfortable at 72–81°F (22–27°C) with a pH of 8.1–8.4.
How big does a King angelfish get?
An adult King angelfish reaches about 13.8 in (35 cm).
Related species
17.7 in (45 cm)251 gal (950 L)73–81°F (23–27°C)African angelfish
Holacanthus africanus
17.7 in (45 cm) · 251 gal (950 L)
17.7 in (45 cm)251 gal (950 L)72–81°F (22–27°C)Blue angelfish
Holacanthus bermudensis
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17.7 in (45 cm)251 gal (950 L)75–81°F (24–27°C)Queen angelfish
Holacanthus ciliaris
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13.8 in (35 cm)90 gal (340 L)73–81°F (23–27°C)Rock beauty angelfish
Holacanthus tricolor
13.8 in (35 cm) · 90 gal (340 L)
13.8 in (35 cm)180 gal (680 L)72–79°F (22–26°C)Personifer angelfish
Chaetodontoplus personifer
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15 in (38 cm)219 gal (830 L)73–81°F (23–27°C)Blueface angelfish
Pomacanthus xanthometopon
15 in (38 cm) · 219 gal (830 L)
