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King Angelfish (Holacanthus passer)

Find King Angelfish across reef-livestock retailers and from fellow hobbyists on ReefDock. Compare sources, check live pricing where available, and review source-tank parameters on Reef-Trak-verified fish listings before you buy.

King Angelfish
Photo: Diego Delso · CC BY-SA 4.0
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Where to buy King Angelfish

ReefDock searches the following reef retailers for this fish. Click through to see the live price.

  • Saltwaterfish

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    Search Saltwaterfish
  • Amazon

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    Search Amazon
  • Petco

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    Search Petco

About King Angelfish

The King Angelfish displays a striking blue body with yellow and orange vertical bands, and distinctive yellow and orange coloration on the head and gill covers. Adults have an elegant, compressed body shape typical of pomacanthid angelfish.

Key facts

Temperament
Semi Aggressive
Diet Details
Zooplankton, small fish, marine algae
Origin
Eastern Pacific from Mexico to Peru, including the Gulf of California.
Common Health Issues
Marine ich, Fin rot, Swim bladder disorder, Hole in the head disease, Bacterial septicemia
Care Level
Expert
Family
Pomacanthidae
Max Size
9.5
Min tank size
125 gallons
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.023-1.025
Appearance
The King Angelfish displays a striking blue body with yellow and orange vertical bands, and distinctive yellow and orange coloration on the head and gill covers. Adults have an elegant, compressed body shape typical of pomacanthid angelfish.
Care Requirements
• Minimum 125-gallon tank for juveniles; larger adults may require larger systems • Stable pH 8.1-8.3, temp 72-78°F, moderate to strong flow • Varied diet: quality pellets, frozen meaty foods, macroalgae • Provide rocky structures for hiding and grazing territories • Can be territorial with large fish; introduce early or last
Difficulty Level
The King Angelfish is a challenging species requiring expert-level care. It demands pristine water quality, live rock for grazing, and stable conditions. It is highly aggressive toward conspecifics and sometimes territorial toward other fish.

Looking for a hobbyist seller?

ReefDock's marketplace lets reef-keepers sell fish directly to other reef-keepers with Stripe-secured checkout and live-arrival photo confirmation. Browse current fish listings on ReefDock, or list your own.

Verify the source tank before you buy

ReefDock is the sister app to Reef Trak. Sellers who maintain a Reef Trak tank log can publish source-tank parameters on eligible fish listings — so you can see the conditions a fish was raised in before you buy. Log this fish on Reef Trak.

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