Helfrichi Firefish Goby
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Quick Specs
Nemateleotris helfrichi- Care Level
- Shop saltwater fish by care level: Easy Care Level Easy Hardy and adaptable. A great pick for newer saltwater tanks.
- Min Tank Size
- Shop saltwater fish by min tank size: 30 gal Min Tank Size 30 gal Needs at least 30 gallons as an adult. A good fit for most small and mid-size tanks.
- Adult Size
- Shop saltwater fish by adult size: 3 in Adult Size 3 in Grows to about 3 inches in an aquarium. Stays fairly small and fits most community tanks.
- Temperament
- Shop saltwater fish by temperament: Peaceful Temperament Peaceful Tankmate selection matters more than almost any other factor.
- Reef Safe
- Shop saltwater fish by reef safe: Yes Reef Safe Yes Generally leaves corals and invertebrates alone, so it is a good fit for reef tanks.
- Diet
- Shop saltwater fish by diet: Omnivore Diet Omnivore Eats both meaty and plant-based foods, so a varied mix keeps it healthy and colorful. Offer small portions several times daily to match the near-continuous grazing pattern of a planktivore. Good foodsFrozen Mysis ShrimpCopepodsFrozen ZooplanktonFinely Chopped Marine Meats
- Origin
- South-central Pacific Origin South-central Pacific Native range: South-central Pacific: French Polynesia to the Cook Islands.
Recommended Foods
All listed sizes are approximate, not guaranteed, and may vary slightly.
Helfrichi Firefish Goby (Nemateleotris helfrichi)
The Helfrichi Firefish Goby is one of the most prized nano reef fish, celebrated for its radiant coloration and peaceful nature. With a lavender-to-violet body, yellow head, and elongated dorsal fin, this deep-water species adds striking contrast to any reef aquarium. Native to the central Pacific, it thrives in calm, stable environments.
Tank Requirements
A 20-gallon or larger tank is sufficient, provided it includes live rock for shelter and open sand or rubble areas for hovering. Secure lids are essential, as Firefish are expert jumpers. Gentle flow and stable water quality mimic their natural deep-reef conditions.
Color, Personality, and Hardiness
This species combines elegance and serenity, often hovering gracefully near its chosen retreat. While initially shy, it becomes confident and interactive once settled. The Helfrichi Firefish is hardy when housed in a peaceful setup and among the most sought-after gobies for nano and display reefs.
Diet and Feeding
Feed small, frequent portions of finely chopped meaty foods such as mysis shrimp, enriched brine shrimp, and high-quality micro-pellets. Their small mouths require appropriately sized foods. Regular feeding ensures optimal coloration and health.
Tankmates and Behavior
Exceptionally peaceful and reef-safe, Helfrichi Firefish coexist well with other gentle species. Avoid housing with aggressive or fast-moving fish that may outcompete them for food. They form monogamous pairs in nature and can be kept singly or as a bonded pair for natural interaction.