Neopoma Damsel

The Neopoma Damsel (Neopomacentrus filamentosus) is an active and attractive saltwater fish recognized for its silvery-gray body accented with yellow highlights and a distinctive filament extending from the tail in mature specimens. Native to the Indo-Pacific region, this hardy species adapts well to aquarium life and is valued for its constant activity and schooling tendencies. While generally less aggressive than many traditional damsels, it can become territorial as it matures, especially in smaller aquariums.

Care Level:

Ease: Beginner-friendly and highly adaptable to a variety of marine aquarium conditions.

Water Conditions:

Salinity: 1.020–1.025 specific gravity
pH: 8.1–8.4
Temperature: 74–80°F (23–27°C)

Tank Requirements:

Minimum tank size: 30 gallons
Provide live rock structures with caves and overhangs for shelter and security
Allow open swimming areas, as this species spends much of its time in the water column
Stable water parameters and regular maintenance are essential for long-term health

Temperament:

Behavior: Semi-aggressive; generally peaceful toward dissimilar species but may establish territories as it matures.

Compatibility:

Best suited for community marine aquariums with clownfish, gobies, blennies, wrasses, and other similarly sized fish
Can often be kept in small groups when introduced together in adequately sized aquariums
Avoid housing with highly aggressive species that may bully or outcompete it

Size:

Adult Length: 4–5 inches (10–13 cm)
Growth: Active swimmer that benefits from ample swimming space and good water movement

Reef Compatibility:

Reef-safe – does not harm corals or most invertebrates
Suitable for reef aquariums and fish-only marine systems alike

Additional Notes:

Neopoma Damsels are omnivores and thrive on a varied diet of high-quality marine flakes, pellets, frozen mysis shrimp, brine shrimp, and finely chopped seafood. Their active nature and tendency to occupy the upper portions of the aquarium make them an excellent choice for adding movement to a marine display. With proper care, they can live 5–8 years or longer and are a durable, colorful addition to both beginner and advanced saltwater aquariums.