
Surgeonfish, Angelfish, and Butterflyfish
Schooling Bannerfish
Heniochus diphreutes
Photo: NPS photo - Bryan Harry · Public domain · Wikimedia Commons
Key facts
- Temperature23–27 °C
- pH8.1–8.4
- Minimum tank400 l
- Adult size21 cm
- Difficulty★★☆☆☆
- TemperamentPeaceful
- WaterMarine
- Reef safeWith caution
Full profile
- Family
- Chaetodontidae
- Origin
- Indo-Pacific
- Size
- 21 cm
- Temperature
- 23 – 27°C
- pH
- 8.1 – 8.4
- Salinity
- 1.023 – 1.025
- Difficulty
- ★★☆☆☆
- Water type
- marine
- Swimming level
- medium
- Behavior
- Pacific
- Minimum number of individuals
- 1 or a group
- Minimum aquarium size
- 400 L
- Diet
- omnivore (zooplankton)
- Reproduction
- oviparous
- Reef Safe
- ⚠️ Use with caution
Notes: Known as the “false Moorish idol.” It has black and white bands and a long filament on its dorsal fin. It is much hardier than the true Moorish idol.





