Blue Star Damsel (Pomacentrus alleni)
Due to variations within species, your item may not look identical to the image provided. Approximate size range may also vary between individual specimen.
Difficulty: Easy
Behavior: Semi-aggressive
Coloration: Blue, Green, Orange
Diet: Omnivore
Compatibility: Yes
Water Parameters: 72-78°F, dKH 8-12, pH 8.1-8.4, specific gravity 1.020-1.025
Size: 2″
Origin: Indonesia, Sri Lanka
Family: Pomacentridae
Adult Size: High
Minimum Tank Size: 30 gallons
| Parameter | Value |
|---|---|
| Species | Pomacentrus alleni |
| Common Name | Blue Star Damsel, Neon Damsel |
| Family | Pomacentridae |
| Origin | Indonesia, Sri Lanka |
| Size (adult) | 2 inches |
| Water Temperature | 72-78°F |
| Water pH | 8.1-8.4 |
| Water dKH | 8-12 |
| Specific Gravity | 1.020-1.025 |
| Compatibility | Yes |
| Diet | Omnivore |
| Difficulty Level | Easy |
| Aggression Level | Semi-aggressive |
| Minimum Tank Size | 30 gallons |
FAQ
What is the typical size of a Blue Star Damsel?
The adult size of a Blue Star Damsel is approximately 2 inches.
What kind of water conditions does this fish require?
It thrives in water with a temperature of 72-78°F, pH between 8.1 and 8.4, dKH of 8-12, and specific gravity of 1.020-1.025.
Is the Blue Star Damsel aggressive?
It is semi-aggressive and generally compatible with other fish, though it may show mild aggression in confined spaces.
Madeleine Wright –
Easy to care for and very active in the tank. The colors are vibrant and stand out well. I’ve kept it in a 30-gallon tank with other peaceful fish and it hasn’t shown aggression. Water parameters were stable and it adapted quickly.
Christian Mitchell –
Looks beautiful with its blue and green tones. It’s not overly aggressive and enjoys the algae and small foods I offer. A good choice for beginners in a well-maintained tank.
Christopher Lee –
Perfect for a small community tank. It’s active and curious, and the color changes in different lighting are impressive. I’ve had it for three months and it’s still healthy and lively.