The Firefish Goby (Nemateleotris magnifica), also known as the Fire Goby or Fire Dartfish, is a peaceful and brightly colored marine fish prized for its white-to-orange gradient body, red tail, and elegant dorsal fin. Native to Indo-Pacific coral reefs, this species thrives in well-maintained saltwater aquariums with live rock for hiding and open spaces for swimming. Firefish Gobies are shy but active mid-water dwellers that do best singly or as a bonded pair, as they may fight with others of their kind. They prefer stable, high-quality water and gentle flow. Their diet should include small meaty foods like mysis shrimp, brine shrimp, and finely chopped seafood. Hardy and reef-safe, they make excellent additions to peaceful marine communities.
Aspect
Details
Scientific Name
Nemateleotris magnifica
Common Name
Firefish Goby, Fire Goby, Fire Dartfish
Origin
Indo-Pacific (from East Africa to the Hawaiian Islands)
Size
Up to 3 inches (7.5 cm)
Lifespan
3–5 years
Temperament
Peaceful, timid
Tank Size
Minimum 20 gallons
Water Temperature
72–80°F (22–27°C)
pH Range
8.1–8.4
Salinity
1.020–1.025 SG
Diet
Carnivore – mysis shrimp, brine shrimp, finely chopped seafood
Tankmates
Peaceful reef-safe fish, shrimp, snails
Reef Compatibility
Fully reef safe
Care Level
Easy
Special Notes
Provide tight lid (excellent jumpers); best kept singly or in pairs