Name: Helfrichi Firefish Goby - Nemateleotris helfrichi
Brand: TSA Fish
SKU: GOBYxHelfrichi
Price: 159.99 USD
Availability: InStock

Helfrichi Firefish Goby - Nemateleotris helfrichi

$159.99

Helfrichi Firefish Goby - Nemateleotris helfrichi

Beginner Fish Goby Reef Safe

$159.99

SKU: GOBYxHelfrichi

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Diet

algae spirulina mysis shrimp brine shrimp

Min Tank Size 30 gallons

Temperament Peaceful

Reef Safe Yes

Care & Diet Feeding, nutrition, and best practices.

Diet Type: Omnivore

Diet and Feeding: The Helfrichi Firefish Goby is a small carnivore/planktivore that naturally feeds on zooplankton, copepods, amphipods, and other tiny drifting invertebrates in the water column. In captivity, it is beneficial to make high-quality marine pellets, fine granules, and frozen mysis shrimp the dietary staples, with enriched brine shrimp, copepods, and finely chopped seafood offered as supplemental variety to ensure balanced nutrition. Feeding small portions with a turkey baster or in a low-flow area encourages natural midwater foraging and helps timid individuals compete successfully; a target-fed approach can also be useful during acclimation. Offer small amounts 2–3 times daily, and maintain strict control over portions to prevent overfeeding and preserve excellent water quality.

algae spirulina mysis shrimp brine shrimp

Behavior Temperament, activity level, and interactions.

Temperament: Peaceful

The Helfrichi Firefish Goby is a shy, midwater-hovering species that spends much of its time near a bolt hole and requires a well-structured aquarium with ample hiding spots and open swimming space. It is generally peaceful and non-aggressive, though it can be skittish and may show mild territoriality toward conspecifics unless housed in a larger system or as a bonded pair. A minimum tank size of 20 gallons is typically recommended, with rockwork arranged to provide visual barriers and secure retreat areas that help reduce stress and encourage natural behavior. In reef setups, it is fully reef-safe and usually coexists well with other peaceful tank mates, but it should be protected from boisterous or predatory species that may outcompete or intimidate it. This species is an opportunistic carnivore that feeds primarily on small meaty foods, including zooplankton, copepods, mysis shrimp, and other finely sized frozen or prepared foods. Regular feedings in a calm environment support good health and help prevent the fish from becoming overly reclusive.

Tank & Aquascape Tank requirements and aquascaping tips.

Min Tank Size: 30 gallons
Max Size: 3 inches
Care Level: Easy
Origin: Pacific Ocean

Compatibility Tank mates, aggression, and introduction order.

Temperament: Peaceful
Reef Safe: Yes

Reef & Health Reef safety, common issues, and prevention.

Reef Safe: Yes
Care Level: Easy

FAQs Answers to the most common questions.

Is a Helfrichi Firefish Goby truly reef-safe, and will it bother small ornamental shrimp or corals?

Yes, it is considered reef-safe. Helfrichi Firefish Gobies do not eat corals and are usually peaceful toward clean-up crew and small ornamental shrimp. The main caution is with very tiny shrimp or extremely shy nano-tank inhabitants, since an individual fish may occasionally snap at tiny prey if underfed, but this is uncommon in a well-fed home aquarium.

How many Helfrichi Firefish Gobies can be kept together, and will they form a pair?

In captivity, keep only one unless you have a confirmed male-female pair introduced carefully into a sufficiently large tank. Two unpaired adults usually fight, with the more dominant fish often harassing the other to death. They are not a schooling species, and “extra” fish are usually not compatible.

Why does my Helfrichi Firefish Goby keep darting into the rockwork, and is that normal behavior?

Completely normal. Helfrichi Firefish are planktonic, cave-oriented fish that rely on bolt-holes for security. They spend much of the day hovering above a burrow or crevice and retreat instantly when startled. A tank without secure rock caves, overhangs, and a calm environment will cause chronic stress and hiding.

What tank setup is best for keeping a Helfrichi Firefish Goby long term?

A mature reef tank with plenty of stable live rock, gentle to moderate flow, and a tight-fitting lid is ideal. They are notorious jumpers, especially when frightened or at night. Use small, secure openings in the canopy or mesh cover, and give them multiple cave options plus open water space for hovering.

What should I feed a Helfrichi Firefish Goby to keep its color and health at their best?

Feed small, frequent meals of meaty marine foods such as enriched mysis shrimp, copepods, finely chopped seafood, and quality small-particle frozen foods. They often do poorly on once-daily feeding alone. A varied, protein-rich diet helps maintain their vivid orange body and electric blue facial markings, especially in newly imported or shy individuals.

Goes well with:

You will receive a fish SIMILAR in design and size to the fish in the photo. This is NOT a WYSIWYG fish.

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.