Surgeonfish, Angelfish, and Butterflyfish
Mertens' butterflyfish
Chaetodon mertensii
Photo: Totti · CC BY-SA 4.0 · Wikimedia Commons
Key facts
- Temperature24–27 °C
- pH8.1–8.4
- Minimum tank250 l
- Adult size12 cm
- Difficulty★★☆☆☆
- TemperamentPeaceful
- WaterMarine
- Reef safeWith caution
Full profile
- Family
- Chaetodontidae
- Origin
- Western and Central Pacific
- Size
- 12 cm
- Temperature
- 24 – 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
- Minimum aquarium size
- 250 L
- Diet
- omnivore
- Reproduction
- oviparous
- Reef Safe
- ⚠️ Use with caution
Notes: V-shaped pattern of dark lines and an orange back. Small and easy to feed.
