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Purple firefish, photographed on a transparent background

ReefIn the market320 coinsCommon

Purple firefish

Nemateleotris decora

Shyer than the firefish, hovering low over rubble to pick plankton.

The Purple firefish (Nemateleotris decora) is a tropical marine fish of the family Gobiidae. It lives on and around reefs, between 25 and 100 m deep. Adults grow to about 7 cm; the largest on record measured 9 cm (total length). In the aquarium it needs a tank at least 60 cm long and water at 23–27 °C.

Size
7 cm
Smallest tank
60 cm
Temperature
23–27 °C
Care
Easy

In the aquarium

Temperature23–27 °C
pH7.8–8.5
Temperament
Peaceful
Diet
Carnivore
Activity
Calm
Water layer
Mid water
Group
Lives on its own
Coral
Reef safe
Drawn to scale in a 60 cm tank

These values are compiled from real species data, and the LumaReef simulation is built to keep them true to life.

Which tank it fits

  • Nano60 cm · 65 litres8 of them
  • Standard90 cm · 180 litres22 of them
  • Wide120 cm · 300 litres37 of them
  • Living room180 cm · 650 litres81 of them
  • Showcase250 cm · 1,200 litres150 of them
  • Gallery300 cm · 1,440 litres180 of them

Who it lives with

In the wild

Water type
Marine
Climate zone
Tropical
Habitat
Coral and rocky reefs
Largest on record
9 cmtotal length
Aquarium trade
Traded commercially

Depth

Conservation status

Classification

  1. OrderGobiiformes
  2. FamilyGobiidae
  3. GenusNemateleotris
  4. SpeciesNemateleotris decora
  5. Described byAllen & Randall, 1973

In other languages

English
Decorated Dartfish
German
Veilchenschwanz-Flügelgrundel
Spanish
Gobio de Fuego Elegante
French
Eleotris décoré
Italian
Ghiozzo di fuoco elegante
Russian
Красноплавниковый нематэлеотрис
Japanese
アケボノハゼ
Chinese
華麗線塘鱧

Quick answers

Purple firefish size: how big does it get?
Adults reach about 7 cm. The largest on record measured 9 cm (total length). Record sizes among the 75 Gobiidae species on LumaReef: 1.3 cm (Creamback Dwarfgoby) to 55.3 cm (Violet Goby).
Purple firefish tank size: what is the minimum?
A tank at least 60 cm long. In LumaReef that is the Nano tank or larger.
Purple firefish water parameters: what does it need?
Temperature 23–27 °C, pH 7.8–8.5. Close to what most Gobiidae on LumaReef need (22–27 °C).
Purple firefish tank mates: what can it live with?
It gets along with 87 of the 99 reef species in the catalogue, such as Percula clownfish, Green chromis, and Cherub angelfish.
Purple firefish: alone or in a group?
It can be kept on its own.
Purple firefish and corals: is it reef safe?
Yes, it leaves corals alone.
Purple firefish depth: how deep does it live?
In the wild, 25 to 100 m down. Deeper than most Gobiidae on LumaReef (2–30 m).

All Gobiidae speciesAll species A–Z

Sources

Purple firefish: compiled from these references.