
Forktail blue-eye
Pseudomugil furcatus
It drifts and twitches up top with fins spread; males display all day.
The Forktail blue-eye (Pseudomugil furcatus) is a tropical freshwater fish of the family Pseudomugilidae. It swims in midwater, close to the bottom. Adults grow to about 5 cm. In the aquarium it needs a tank at least 60 cm long and water at 23–28 °C.
- Size
- 5 cm
- Smallest tank
- 60 cm
- Temperature
- 23–28 °C
- Care
- Moderate
In the aquarium
Temperature23–28 °C
pH6.5–7.8
Hardness5–15 °dGH
- Temperament
- Peaceful
- Diet
- Carnivore
- Activity
- Moderate
- Water layer
- Surface
- Group
- Happiest in a group of 8 or more
- Plants
- Plant safe
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 litres21 of them
- Standard90 cm · 180 litres60 of them
- Wide120 cm · 300 litres100 of them
- Living room180 cm · 650 litres216 of them
- Showcase250 cm · 1,200 litres400 of them
- Gallery300 cm · 1,440 litres480 of them
Who it lives with
Gets along80 species
- Emperor tetra
- Zebra danio
- Cherry barb
- Platy
- Cardinal tetra
- Lemon tetra
- Penguin tetra
- Harlequin rasbora
- Dwarf chain loach
- Black neon tetra
- Black skirt tetra
- Serpae tetra
- Glowlight tetra
- Diamond tetra
- Silver hatchetfish
- Pearl danio
- Tiger barb
- Guppy
- Neon tetra
- Glowlight danio
- Bronze corydoras
- Green neon tetra
- Lambchop rasbora
- Endler's livebearer
Caution10 species
Narrow shared temperature range
Not together9 species
Aggressive with peaceful
Water temperatures do not overlap
In the wild
- Water type
- Freshwater
- Climate zone
- Tropical
- Habitat
- Midwater, close to the bottom
- Aquarium trade
- Traded commercially
Classification
- OrderAtheriniformes
- FamilyPseudomugilidae
- GenusPseudomugil
- SpeciesPseudomugil furcatus
- Described byNichols, 1955
In other languages
- Russian
- Вильчатая синеглазка
Quick answers
- Forktail blue-eye size: how big does it get?
- Adults reach about 5 cm. Record sizes among the 4 Pseudomugil species on LumaReef: 3.5 cm (Blueback Blue Eye) to 7 cm (Pacific Blue Eye).
- Forktail blue-eye tank size: what is the minimum?
- A tank at least 60 cm long. In LumaReef that is the Nano tank or larger.
- Forktail blue-eye water parameters: what does it need?
- Temperature 23–28 °C, pH 6.5–7.8, hardness 5–15 °dGH. Close to what most Pseudomugil on LumaReef need (21–28 °C).
- Forktail blue-eye tank mates: what can it live with?
- It gets along with 80 of the 99 freshwater species in the catalogue, such as Emperor tetra, Zebra danio, and Cherry barb.
- Forktail blue-eye: alone or in a group?
- Keep at least 8 together.
- Forktail blue-eye and plants: is it plant safe?
- Yes, it leaves plants alone.
Similar species
Sources
Forktail blue-eye: compiled from these references.









