Family: Pseudomugilidae
Forktail Blue-eye — a Pseudomugilidae from N Australia & New Guinea, peaceful schooling fish; males shimmer and spar gently. Reaches 4–8 cm; groups of 6–8 minimum; larger schools calm them. 20–26 °C.
Pseudomugil furcatus is a Pseudomugilidae from N Australia & New Guinea. In the wild it prefers warm freshwater streams and lakes; in the aquarium it stays peaceful schooling fish. Plan on 4–8 cm of adult fish at 20–26 °C. Related profiles: Pseudomugil gertrudae.
Intermediate difficulty. Peaceful schooling fish; males shimmer and spar gently; groups of 6–8 minimum; larger schools calm them.
Set the heater to 20–26 °C and avoid swings. pH 6.5–7.5, GH 5–15 dGH suit it.
Full size is 4–8 cm. Minimum tank: 77 L, with open swimming space along its middle of the water column habits.
Omnivore; quality flakes plus vegetable matter. Feed two small meals a day rather than one large one.
Peaceful schooling fish; males shimmer and spar gently. Recommended tankmates: Robust peaceful cyprinids — Add motion without menace. Avoid Small timid fish — Outcompeted at feeding time.
Native to N Australia & New Guinea, where it lives in warm freshwater streams and lakes. Still to gentle current; Moderate oxygen levels.
Not a noted jumper — a standard cover still keeps dust and spray in.
In the aquarium: prolific egg-scatterer when kept hard and alkaline. Subtle external differences.