Common Names: Bluefin Damselfish, Bowtie Damselfish, Royal Damselfish, Zulu Damsel

Scientific Name: Neoglyphidodon melas

Origin: Indo-Pacific (Red Sea and East Africa to the Great Barrier Reef)

Max Size: 18 cm (approx. 7 inches) one of the largest damselfish species.

Lifespan: 25 years (Captive); potentially longer in specialized systems.

Temperament: Aggressive to Highly Aggressive; extremely territorial as an adult.

Diet: Omnivore In the wild, they are known to eat soft corals and even Tridacna clam feces.

Care Level: Easy (Very hardy, but difficult to manage socially).

Juvenile: Breathtakingly beautiful. It features a shimmering white/silver body with a bright yellow dorsal surface and yellow-edged tail lobes. Its pelvic and anal fins are a striking electric blue with black margins.

Adult: The vibrant colors disappear entirely. As it matures, the fish turns into a solid, uniform dark blue-to-jet black. While it has a sleek, “royal” silhouette, it loses the neon-yellow and blue highlights of its youth.

Aggression: As a juvenile, it is “feisty.” As an adult, it becomes a dominant bully. It will claim a large portion of the tank and fiercely attack intruders.

Reef Safe (with Caution): Unlike many damsels, this species is not strictly reef-safe. Adults are known to eat soft corals and may nip at the mantles of Tridacna clams.

Tank Mates: Should only be housed with large, assertive fish that can hold their own, such as Tangs, Large Angelfish, Dottybacks, and Triggerfish. Never keep them with small, peaceful fish like Gobies or Firefish.

Social Structure: Best kept singly. Keeping multiple Bluefin Damsels will almost certainly lead to the death of the submissive fish unless the tank is massive (1,000L+).

Tank Size: A minimum of 200L (55 Gallons) is required for a single specimen, though 300L500L is recommended to help dilute its territorial aggression toward other fish.

Rockwork: Provide substantial live rock with large caves. They need a “castle” to defend.

Feeding: They are not picky. Offer a variety of meaty frozen foods (mysis, krill, squid) and high-quality herbivore pellets or flakes containing Spirulina.

Lid: They are powerful, fast swimmers and can easily jump if they get into a high-speed chase. A secure lid is mandatory.

Common Names: Bluefin Damselfish, Bowtie Damselfish, Royal Damselfish, Zulu Damsel

Scientific Name: Neoglyphidodon melas

Origin: Indo-Pacific (Red Sea and East Africa to the Great Barrier Reef)

Max Size: 18 cm (approx. 7 inches) one of the largest damselfish species.

Lifespan: 25 years (Captive); potentially longer in specialized systems.

Temperament: Aggressive to Highly Aggressive; extremely territorial as an adult.

Diet: Omnivore In the wild, they are known to eat soft corals and even Tridacna clam feces.

Care Level: Easy (Very hardy, but difficult to manage socially).

Juvenile: Breathtakingly beautiful. It features a shimmering white/silver body with a bright yellow dorsal surface and yellow-edged tail lobes. Its pelvic and anal fins are a striking electric blue with black margins.

Adult: The vibrant colors disappear entirely. As it matures, the fish turns into a solid, uniform dark blue-to-jet black. While it has a sleek, “royal” silhouette, it loses the neon-yellow and blue highlights of its youth.

Aggression: As a juvenile, it is “feisty.” As an adult, it becomes a dominant bully. It will claim a large portion of the tank and fiercely attack intruders.

Reef Safe (with Caution): Unlike many damsels, this species is not strictly reef-safe. Adults are known to eat soft corals and may nip at the mantles of Tridacna clams.

Tank Mates: Should only be housed with large, assertive fish that can hold their own, such as Tangs, Large Angelfish, Dottybacks, and Triggerfish. Never keep them with small, peaceful fish like Gobies or Firefish.

Social Structure: Best kept singly. Keeping multiple Bluefin Damsels will almost certainly lead to the death of the submissive fish unless the tank is massive (1,000L+).

Tank Size: A minimum of 200L (55 Gallons) is required for a single specimen, though 300L500L is recommended to help dilute its territorial aggression toward other fish.

Rockwork: Provide substantial live rock with large caves. They need a “castle” to defend.

Feeding: They are not picky. Offer a variety of meaty frozen foods (mysis, krill, squid) and high-quality herbivore pellets or flakes containing Spirulina.

Lid: They are powerful, fast swimmers and can easily jump if they get into a high-speed chase. A secure lid is mandatory.

Common Names: Bluefin Damselfish, Bowtie Damselfish, Royal Damselfish, Zulu Damsel

Scientific Name: Neoglyphidodon melas

Origin: Indo-Pacific (Red Sea and East Africa to the Great Barrier Reef)

Max Size: 18 cm (approx. 7 inches) one of the largest damselfish species.

Lifespan: 25 years (Captive); potentially longer in specialized systems.

Temperament: Aggressive to Highly Aggressive; extremely territorial as an adult.

Diet: Omnivore In the wild, they are known to eat soft corals and even Tridacna clam feces.

Care Level: Easy (Very hardy, but difficult to manage socially).

Juvenile: Breathtakingly beautiful. It features a shimmering white/silver body with a bright yellow dorsal surface and yellow-edged tail lobes. Its pelvic and anal fins are a striking electric blue with black margins.

Adult: The vibrant colors disappear entirely. As it matures, the fish turns into a solid, uniform dark blue-to-jet black. While it has a sleek, “royal” silhouette, it loses the neon-yellow and blue highlights of its youth.

Aggression: As a juvenile, it is “feisty.” As an adult, it becomes a dominant bully. It will claim a large portion of the tank and fiercely attack intruders.

Reef Safe (with Caution): Unlike many damsels, this species is not strictly reef-safe. Adults are known to eat soft corals and may nip at the mantles of Tridacna clams.

Tank Mates: Should only be housed with large, assertive fish that can hold their own, such as Tangs, Large Angelfish, Dottybacks, and Triggerfish. Never keep them with small, peaceful fish like Gobies or Firefish.

Social Structure: Best kept singly. Keeping multiple Bluefin Damsels will almost certainly lead to the death of the submissive fish unless the tank is massive (1,000L+).

Tank Size: A minimum of 200L (55 Gallons) is required for a single specimen, though 300L500L is recommended to help dilute its territorial aggression toward other fish.

Rockwork: Provide substantial live rock with large caves. They need a “castle” to defend.

Feeding: They are not picky. Offer a variety of meaty frozen foods (mysis, krill, squid) and high-quality herbivore pellets or flakes containing Spirulina.

Lid: They are powerful, fast swimmers and can easily jump if they get into a high-speed chase. A secure lid is mandatory.