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Regal angelfish (Pygoplites diacanthus)
Photo: Diego Delso · CC BY-SA 4.0 via Wikimedia Commons

Regal angelfish

Pygoplites diacanthus · Pomacanthidae

Also known as Royal angelfish

Advanced

Striking striped angel; Indian Ocean specimens feed far better than Pacific ones, but still expert-only.

Minimum tank
450 L
Temperature
24–28 °C
pH
8.1–8.4
Adult size
25 cm
Group size
1+
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Reef & marine husbandry
Specific gravity
1.023–1.026
Reef safety
Reef safe with caution
With corals
Picks at LPS, soft coral and clams.
With inverts
Eats sponges and tube worms.
Minimum in a mixed reef
450 L
Minimum fish-only (FOWLR)
450 L
Aggression
Shy; loses feeding contests.
Feeding
Three or more small feeds daily.
Care requirements
Minimum tank volume
450 L
Temperature
24–28 °C
pH
8.1–8.4
Hardness
8–12 dGH
Lifespan
10–15 years
Diet
Omnivore — sponge-based angel formula, live sponge, mysis, nori.
Care level
Advanced
Origin & habitat
Native region
Indian Ocean, Red Sea and Indo-Pacific
Water type
Saltwater
Biotope
Sponge-rich coral reef caves
Natural conditions
Mature, quiet, pristine reef.
Behaviour & stocking
Temperament
Peaceful
Minimum group
1 fish
Swims
All levels
Good tank mates
Peaceful tangs
Wrasses
Cardinalfish
Avoid
Aggressive tank mates
Newly set-up tanks
Breeding & difficulty
Breeding difficulty
Advanced
Sexing
No external difference.
Notes
Not bred in captivity.
Common ailments
Starvation
Marine ich
Internal parasites

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