← Back to

đŸ”Ĩ Firefish Goby (Nemateleotris magnifica)

The Firefish Goby, also called the Fire Dartfish, is a stunning beginner fish with a white/yellow body that transitions to a fiery red-orange tail. Known for hovering motionless in the water column before darting into hiding, this peaceful fish is perfect for reef aquariums of all sizes.

📋 Quick Facts

Scientific NameNemateleotris magnifica
Adult Size3 inches (7.5 cm)
Minimum Tank20 gallons (75 liters)
TemperamentPeaceful, shy
Reef SafeYes
DifficultyBeginner
Lifespan3-5 years
OriginIndo-Pacific

âš ī¸ Important Considerations

  • Jumpers! - Secure lid absolutely required
  • Shy fish - Can be bullied by aggressive tankmates
  • Need hiding spots - Will be stressed without burrows

🏠 Tank Requirements

  • Tank Size: 20 gallons minimum
  • Lid: SECURE - notorious jumpers
  • Burrows: Need tube or cave to retreat to
  • Peaceful tankmates: Stressed by aggressive fish

Water Parameters

Temperature74-80°F (23-27°C)
pH8.1-8.4
Salinity1.023-1.025
Ammonia/Nitrite0 ppm
Nitrate<20 ppm

đŸŊī¸ Diet & Feeding

Carnivores that accept most small foods.

  • Frozen mysis - Favorite
  • Frozen brine
  • Quality pellets
  • Cyclops

Feed 2-3 times daily. May be shy feeders initially.

🐟 Compatibility

Good Tankmates

  • Clownfish
  • Other gobies (with caution)
  • Blennies
  • Royal Gramma
  • Peaceful community fish

Avoid

  • Aggressive fish - Will terrorize firefish
  • Six Line Wrasse - Known to bully them
  • Dottybacks - Too aggressive

đŸ‘Ģ Keeping Multiples

  • Can be kept in pairs or small groups
  • Buy at same time, similar size
  • May establish hierarchy
  • Watch for aggression in small tanks

💡 Tips for Success

  • Secure your lid - #1 cause of death is jumping
  • Provide tube or cave for retreat
  • Add before aggressive fish
  • Keep with peaceful tankmates only
  • Don't panic if hiding at first - normal adjustment

📚 Summary

The Firefish is a beautiful, peaceful addition to reef tanks. Its main requirements are a secure lid (they jump when startled) and peaceful tankmates (they're easily bullied). With these conditions met, they're hardy and long-lived. Their hovering behavior and fiery colors make them a standout in any reef aquarium.