Clownfish, damselfish, and cardinalfish
Allen's damselfish
Pomacentrus alleni
Photo: Gerald R. Allen · CC BY 3.0 · Wikimedia Commons
Key facts
- Temperature24–28 °C
- pH8.1–8.4
- Minimum tank100 l
- Adult size6 cm
- Difficulty★☆☆☆☆
- TemperamentSemi-aggressive
- WaterMarine
- Reef safeYes
Full profile
- Family
- Pomacentridae
- Origin
- Eastern Indian Ocean (Andaman, Indonesia)
- Size
- 6 cm
- Temperature
- 24 – 28°C
- pH
- 8.1 – 8.4
- Salinity
- 1.023 – 1.025
- Difficulty
- ★☆☆☆☆
- Water type
- marine
- Swimming level
- medium
- Behavior
- Semi-aggressive (one of the calmer damselfish)
- Minimum number of individuals
- 1 or a group in a large aquarium
- Minimum aquarium size
- 100 L
- Diet
- omnivore
- Reproduction
- oviparous
- Reef Safe
- ✅ Yes
Notes: Electric blue with yellowish undersides of the fins. A good choice for a reef tank with small fish.
