Common Names: Orangetail Blue Damsel, Blue Devil, Cornflower Damsel

Scientific Name: Chrysiptera cyanea

Origin: Indo-West Pacific (Indonesia to the Great Barrier Reef)

Max Size: 8 cm (approx. 3 inches)

Lifespan: 510 years

Temperament: Aggressive; highly territorial

Diet: Omnivore Opportunistic feeder

Care Level: Very Easy

The Electric Blue: The entire body is a brilliant, almost glowing neon sapphire blue. Under high-quality reef lighting, it looks like it is powered by LEDs.

The “Orangetail” (The Male): In this species, the males develop a bright orange-to-yellow tail fin and often an orange-tinted snout.

The Female: Generally solid blue with a small black spot at the base of the rear dorsal fin.

The Eyes: Features a dark horizontal bar through the eye, giving it a look of constant “predatory” focus.

Fearless Territory: This fish is the “security guard” of the rockwork. It will select a specific territory and aggressively drive away any fisheven those five times its sizethat gets too close.

The “Blue Flash”: They are incredibly fast. You will often see them “flashing” across the tank to chase a rival or grab a piece of food.

Reef Safe: 100% Reef Safe with corals and clams. However, they may harass very small, delicate shrimp or sessile invertebrates if they are in their “territory.”

Social Structure: Only keep one male per tank unless the aquarium is very large (over 400L). You can keep a male with a group of females if they are all added at the same time.

Tank Size: A minimum of 75L115L (2030 Gallons) for a single specimen. In larger tanks, their aggression is diluted because other fish have room to escape.

Rockwork: Provide complex rock structures with multiple exits. This allows the Damsel to feel secure in its “fortress” while giving other fish places to hide.

Feeding: They are among the easiest fish to feed. They will thrive on a mix of frozen mysis, brine shrimp, high-quality flakes, and herbivore pellets.

Water Quality: This is a “bulletproof” fish. It can handle fluctuations in water quality that would be fatal to delicate wrasses, making it a great choice for maturing a system.

Common Names: Orangetail Blue Damsel, Blue Devil, Cornflower Damsel

Scientific Name: Chrysiptera cyanea

Origin: Indo-West Pacific (Indonesia to the Great Barrier Reef)

Max Size: 8 cm (approx. 3 inches)

Lifespan: 510 years

Temperament: Aggressive; highly territorial

Diet: Omnivore Opportunistic feeder

Care Level: Very Easy

The Electric Blue: The entire body is a brilliant, almost glowing neon sapphire blue. Under high-quality reef lighting, it looks like it is powered by LEDs.

The “Orangetail” (The Male): In this species, the males develop a bright orange-to-yellow tail fin and often an orange-tinted snout.

The Female: Generally solid blue with a small black spot at the base of the rear dorsal fin.

The Eyes: Features a dark horizontal bar through the eye, giving it a look of constant “predatory” focus.

Fearless Territory: This fish is the “security guard” of the rockwork. It will select a specific territory and aggressively drive away any fisheven those five times its sizethat gets too close.

The “Blue Flash”: They are incredibly fast. You will often see them “flashing” across the tank to chase a rival or grab a piece of food.

Reef Safe: 100% Reef Safe with corals and clams. However, they may harass very small, delicate shrimp or sessile invertebrates if they are in their “territory.”

Social Structure: Only keep one male per tank unless the aquarium is very large (over 400L). You can keep a male with a group of females if they are all added at the same time.

Tank Size: A minimum of 75L115L (2030 Gallons) for a single specimen. In larger tanks, their aggression is diluted because other fish have room to escape.

Rockwork: Provide complex rock structures with multiple exits. This allows the Damsel to feel secure in its “fortress” while giving other fish places to hide.

Feeding: They are among the easiest fish to feed. They will thrive on a mix of frozen mysis, brine shrimp, high-quality flakes, and herbivore pellets.

Water Quality: This is a “bulletproof” fish. It can handle fluctuations in water quality that would be fatal to delicate wrasses, making it a great choice for maturing a system.