Purple Firefish (Nemateleotris decora)

The Purple Firefish is a stunningly colorful and peaceful species, known for its graceful movements and striking purple body. This dartfish is a favorite among reef aquarists due to its hardiness, small size, and vibrant appearance. Its combination of purple, yellow, and red hues, along with its elongated dorsal fin, makes it a standout addition to nano and larger tanks alike. The Purple Firefish thrives in stable aquariums with plenty of hiding spots and a secure lid, as it is prone to jumping.

Care Information

• Maximum Size: Up to 3 inches.
• Tank Size: 20 gallons minimum; best kept in tanks with plenty of rockwork for shelter and a peaceful environment.
• Diet: Carnivorous; feeds on small meaty foods like mysis shrimp, brine shrimp, and finely chopped seafood. It also accepts high-quality marine pellets or flakes.
• Water Temp: 72-78°F.
• Salinity: 1.020-1.025.
• Aggression: Peaceful; generally shy and does well in community tanks with non-aggressive tankmates. May become territorial with other firefish in smaller tanks.
• Skill Level: Beginner to Intermediate; hardy and easy to care for, making it an excellent choice for aquarists of all levels.
• Reef Compatibility: Reef-safe; does not harm corals or invertebrates, making it a perfect addition to reef tanks.

Special Feature - Secure Lid Required
The Purple Firefish is a known jumper, especially when startled. A tight-fitting lid or mesh cover is essential to prevent escape.

Compatibility
This firefish is peaceful and works well in community setups with other small, non-aggressive fish. Avoid housing it with large, predatory species or overly aggressive tankmates that may intimidate it.

Coloration

• Indo-Pacific Region: The Purple Firefish features a stunning purple head that transitions to a light lavender body with hints of yellow and red fins. Its elongated dorsal fin adds an elegant flair to its appearance​.

Typical Habitat

• Distribution: Found throughout the Indo-Pacific, particularly in reef slopes and lagoons where it inhabits burrows and rocky areas. In aquariums, it requires a stable environment with hiding spots to feel secure.