
Blue damselfish
Chrysiptera cyanea
A brilliant blue troublemaker that chases even bigger fish.
The Blue damselfish (Chrysiptera cyanea) is a tropical marine fish of the family Pomacentridae. It lives on and around reefs, between 0 and 10 m deep. Adults grow to about 7 cm; the largest on record measured 8.5 cm (total length). In the aquarium it needs a tank at least 75 cm long and water at 23–27 °C.
- Size
- 7 cm
- Smallest tank
- 75 cm
- Temperature
- 23–27 °C
- Care
- Easy
In the aquarium
Temperature23–27 °C
pH7.8–8.5
- Temperament
- Aggressive
- Diet
- Omnivore
- Activity
- Busy
- Water layer
- Mid water
- Group
- Lives on its own
- Coral
- Reef safe
These values are compiled from real species data, and the LumaReef simulation is built to keep them true to life.
Which tank it fits
- Nano60 cm · 65 litresToo small
- Standard90 cm · 180 litres20 of them
- Wide120 cm · 300 litres33 of them
- Living room180 cm · 650 litres72 of them
- Showcase250 cm · 1,200 litres133 of them
- Gallery300 cm · 1,440 litres160 of them
Who it lives with
Gets along38 species
- Percula clownfish
- Cherub angelfish
- Falco hawkfish
- Orchid dottyback
- Banggai cardinalfish
- Clownfish
- Yellowtail damselfish
- Azure damselfish
- Flame hawkfish
- Rusty angelfish
- Canary blenny
- Striped fang blenny
- Neon dottyback
- Flame angelfish
- Coral beauty angelfish
- Potter's angelfish
- Mystery wrasse
- Blackcap basslet
- Clarkii clownfish
- Valentini puffer
- Tomato clownfish
- Bicolor angelfish
- Midas blenny
- Longnose hawkfish
Caution13 species
Not together48 species
Aggressive with peaceful
- Green chromis
- Carpenter's flasher wrasse
- Purple firefish
- Court jester goby
- Royal gramma
- Scooter dragonet
- Swissguard basslet
- Chalk bass
- Pajama cardinalfish
- Yellowstriped cardinalfish
- Yellow watchman goby
- Fire goby
- Tailspot blenny
- Mandarinfish
- Talbot's damselfish
- Pink skunk clownfish
- Springer's damselfish
- Flame wrasse
- Neon goby
- Yasha goby
- High-fin shrimpgoby
- Randall's shrimpgoby
- Dispar anthias
- Ruby red dragonet
- Radiant wrasse
- Cleaner wrasse
- Bicolor blenny
- Lyretail anthias
- Yellowhead jawfish
- Green clown goby
- Yellow coris wrasse
- Leopard wrasse
- Melanurus wrasse
- Exquisite fairy wrasse
- Lawnmower blenny
- Starry blenny
- Pearlscale butterflyfish
- Aiptasia-eating filefish
- Diamond watchman goby
- Copperband butterflyfish
- Longnose butterflyfish
- Lined seahorse
- Pyramid butterflyfish
- Regal angelfish
- Foxface rabbitfish
- Blue tang
- Yellow boxfish
- Longhorn cowfish
In the wild
- Water type
- Marine
- Climate zone
- Tropical
- Habitat
- Coral and rocky reefs
- Largest on record
- 8.5 cmtotal length
- Aquarium trade
- Traded commercially
Depth
surface
0 m10 m
Conservation status
Classification
- OrderBlenniiformes
- FamilyPomacentridae
- GenusChrysiptera
- SpeciesChrysiptera cyanea
- Described byQuoy & Gaimard, 1825
In other languages
- English
- Blue Demoiselle
- German
- Blauer Korallenfisch
- Spanish
- Damisela zafiro
- Italian
- Damigella zaffiro
- Russian
- Синяя хризиптера
- Japanese
- ルリスズメダイ
- Chinese
- 藍刻齒雀鯛
Quick answers
- Blue damselfish size: how big does it get?
- Adults reach about 7 cm. The largest on record measured 8.5 cm (total length). Record sizes among the 13 Chrysiptera species on LumaReef: 4.9 cm (Greyback Damselfish) to 12.5 cm (Twospot Demoiselle).
- Blue damselfish tank size: what is the minimum?
- A tank at least 75 cm long. In LumaReef that is the Standard tank or larger.
- Blue damselfish water parameters: what does it need?
- Temperature 23–27 °C, pH 7.8–8.5. Close to what most Chrysiptera on LumaReef need (23–27 °C).
- Blue damselfish tank mates: what can it live with?
- It gets along with 38 of the 99 reef species in the catalogue, such as Percula clownfish, Cherub angelfish, and Falco hawkfish.
- Blue damselfish: alone or in a group?
- It can be kept on its own.
- Blue damselfish and corals: is it reef safe?
- Yes, it leaves corals alone.
- Blue damselfish depth: how deep does it live?
- In the wild, 0 to 10 m down. Shallower than most Chrysiptera on LumaReef (1–18 m).
Similar species
Sources
Blue damselfish: compiled from these references.









