Blue Devil Damselfish
Chrysiptera cyanea
Also known as: Blue Damsel, Sapphire Devil
Brilliant electric blue damselfish. Beautiful but extremely aggressive and territorial for its size.
Tank Size
20 gal
minimum (30+ preferred)
Temperature
74–82°F
23–28°C
pH Range
8–8.4
water acidity
Max Size
3"
7.6 cm
Lifespan
5–10 years
typical in captivity
Swim Level
Middle
preferred zone
Care Notes
Hardy but very aggressive. Often used to cycle tanks then becomes the tank bully. Add last if keeping.
Feeding
Marine flakes, pellets, and frozen foods.
Compatible Tank Mates
None identified.
Use Caution With
Incompatible With
Check Compatibility
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