Overview
The Blue Damselfish is a popular saltwater species known for its striking blue color and peaceful nature. They require a spacious tank and a compatible community to thrive. With proper care, they can live up to 5 years.
Scientific Classification
| Rank | Classification |
|---|---|
| Family | Pomacentridae |
| Genus | Chrysiptera |
| Species | Chrysiptera cyanea |
| Water type | saltwater |
Natural Habitat
Found in the Pacific and Indian Oceans, these fish inhabit coral reefs and lagoons.
Appearance
Characterized by bright blue bodies with horizontal black stripes and a white face.
Behavior
Blue Damselfish are generally peaceful but can be shy in new environments. They are not known for schooling behavior and can be kept in groups of 2-5.
| Trait | Value |
|---|---|
| Temperament | peaceful community fish |
| Schooling | No |
| Activity level | moderate |
Water Requirements
| Parameter | Ideal Range | Notes |
|---|---|---|
| Temperature | 22–28°C (72–82°F) | Use a reliable adjustable heater |
| pH | 8.1–8.4 | Avoid sudden swings |
| Hardness (GH) | 8-12 dGH dGH | Soft to moderately hard |
| Ammonia | 0 ppm | Any detectable ammonia signals a problem |
| Nitrite | 0 ppm | Toxic even at low levels |
| Nitrate | <20 ppm | Manage through regular partial water changes |
| Min. tank | 120L (32 gal) | Larger tanks are easier to keep stable |
Interesting Facts
- Blue Damselfish are often found in pairs or small groups.
- They can change color depending on their mood or stress levels.
- Their diet consists of algae and small invertebrates.
📋 Full Care Guide
Ready to set up a tank for your Blue Damselfish? The complete care guide covers tank setup, feeding schedule, common diseases, tank mates, and breeding.
Read Blue Damselfish Care Guide →Related Species
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This species profile was reviewed for biological accuracy and practical aquarium care guidance. For suspected illness or disease, test your water parameters first and consult an aquatic veterinarian if symptoms persist.