Source: Wikimedia Commons
Blue Devil Damselfish
BeginnerChrysiptera taupou
Small marine fish in vivid cobalt blue. Extremely hardy, often used as pilot fish. Aggressive temperament.
Difficulty
Beginner
Temperature
23〜26℃
Lifespan
5-8 years
Size
5-7cm
Diet
Pellets, frozen food
About
The Fiji damsel (Chrysiptera taupou), commonly called the blue damselfish or South Seas devil, is a small damselfish native to the western Pacific Ocean from the Coral Sea to Samoa. Its jewel-like cobalt blue body with a yellow belly and anal region creates a vivid contrast that has made it a longstanding favorite in the marine aquarium trade. Exceptionally hardy and tolerant of water parameter swings, it is among the most beginner-accessible saltwater fish. While a 30-litre aquarium is technically sufficient, strong territorial behavior — common to all damsels — can lead to aggression toward tankmates, especially smaller fish. Introducing it last, or in a group, helps reduce conflict.
Source: Wikipedia (CC BY-SA 4.0)
Basic Info
Origin
Western Pacific Ocean, from the Coral Sea to Samoa
Lifespan
5-8 years
Size
5-7cm
Temperature
23〜26℃
Diet
Pellets, frozen food
Care Guide
Tank
30L+ can start keeping
Water Quality
Very hardy — tolerant of water quality changes
Temperament
Aggressive — highly territorial
Compatibility
Aggressive toward conspecifics and similar-sized fish
Notes
Difficult to add fish later — plan introduction order
Beginner-friendlyHardyAggressivePilot fish
Blue Devil Damselfish FAQ
QHow difficult is it to keep Blue Devil Damselfish?
A
Beginner. This is a beginner-friendly species. No special equipment or experience is required, and it can be kept successfully with basic care setup.
QWhat is the ideal temperature for Blue Devil Damselfish?
A
The ideal temperature for Blue Devil Damselfish is 23〜26℃. Avoid sudden temperature changes and maintain a stable environment.
QWhat is the lifespan of Blue Devil Damselfish?
A
Blue Devil Damselfish Q&A
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