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Forktail Blue Eyes - Pseudomugil furcatus (Nichols1955) Forktail Rainbowfish.
Male P. furcatus displaying erect fins.
Description: Slender fishes with blue eyes, erectile fins, forked tail. Diagnosis: Dorsal spines (total): 4-7; Dorsal softrays (total): 7-9; Anal spines: 1-1; Anal soft-rays: 15-18.
Distribution: known only from
the lowlands of eastern Papua New Guinea.
Water Requirements: Flowing, neutral to slightly basic, clean freshwater; pH=7.6, H=14, water temperature 25°C. Good filtration required.
Tank Habitat: Well planted tank with open
Diet: omnivorous; takes small crustacea and insect larvae; will eat flake foods, blood worms and daphnia.
Sexing: Males have brighter fin colouring.
Reproduction: egg layer
Tank Community: Peaceful, active in shoals; keep with small fish or in a species tank.
Comments: Keep these fish in shoals of 6+ with plant cover.
Australian Blue Eyes - Pseudomugil
gertrudae (Weber 1911)
Description: Slender, active fishes with blue eyes, erectile fins. Diagnosis: Dorsal spines (total): 4-6; Dorsal softrays (total): 6-8; Anal spines: 1-1; Anal soft-rays: 9-12.
Distribution: Northern Australia, southern New Guinea and the Aru Islands. Reported also from northern Australian inland Rivers and springs.
Natural Habitat: demersal
(lives in deep waters); freshwater; pH
range: 6.0 - 6.0; dGH range: 5.0 - 12.0.
Climate: tropical; 25 - 30°C. Inhabits small creeks, swampy
marshes, heavily shaded rainforest streams, lily lagoons, pools and backwaters
adjacent to major water courses. Occurs at temperatures and pH ranging
from 23°-30° C and 5.2-6.7 respectively.
Pacific Blue-Eye - Pseudomugil signifer (Kner 1866)
Male Pacific Blue-eyes in display attitude.
|Pseudomugil signifer (Kner 1866) Pacific Blue-Eye; Australian Blue-Eye, Southern Blue-Eye.
Description: Thin, active fish, with large, iridescent blue eyes, olive-green body with a row of iridescent green and black bars along the lateral line and with an iridescent patch at the markedly narrow beginning of the caudal fin; males have distinctive high-pointed, erectile fins, yellow edged in black.
Distribution: endemic to Northern and North Eastern Australia.
Natural Habitat: Occurs in clear, cool,
streams and also brackish mangrove estuaries; benthopelagic,
brackish; pH range: 6.5 - 7.5; dGH range: 12.0 - 15.0. Climate:
23 - 28°C.
Reproduction: dioecism; fertilization
is external; egg scatterers in open water or on substrate;
Tank Community: Males show territorial aggression and display flared fins, but do not nip other fishes.
Comments: Can be kept with small Tanganyikan cichlids such as Lemon Cichlids and Julies.
connieae (Allen 1981)
Description: An attractive, small fish with iridescent blue lateral stripe;
Distribution: occurs within a 50 km radius of Popondetta, eastern Papua New Guinea. Generally found in clear, moderate to fairly rapid flowing streams in both shaded rainforest or sunlit, exposed sections. The altitudinal range is from about 30-300 m.
Natural Habitat: pelagic (lives at or near the surface); freshwater; pH range: 7.7 - 7.9; dGH range: 10.0.
Conservation Status: Not in IUCN Red List.
Threats: Habitat destruction, pollution, over catching for aquarium trade.
Size: Max. size: 5.0 cm SL; 4.0 cm SL (female)
Water Requirements: aquarium conditions: pH=7.7, H=14, 28°C water temperature
Tank Habitat: tropical, riverine, with some water movement, open swimming spaces and plant cover.
Diet: An omnivore
Sexing: finnage of males is a give-away!
Reproduction: egg laying: no details available.
Tank Community: peaceful community fish.
Incompatible Species: larger fish.
Comments: "Connies" need room to swim.
|Pseudomugil mellis (Allen & Ivantsoff 1982) The Honey Blue-eye.
Description:Pseudomugil mellis is a species related to P. signifer.
Distribution: Southern Queensland around the vicinity of Brisbane, Australia, and 300 km northward along the coast to the Bundaberg area.
Natural Habitat: benthopelagic;
brackish; pH range: 6.0 - 8.0; dGH range: 5.0 - 12.0. Climate:
24 - 28°C; 26°S - 27°S. Inhabits ponds and small streams
the sea; water typically dark (tea-like) with sand or mud bottom
upper limit of water temperature 27.5°-32.5°C).
Size: Max. size: 2.5 cm SL
Water Requirements: adaptable to
or brackish water, as above.
Tank Habitat: open swimming spaces with vegetation or log and branch retreats.
Sexing: Males have elongated fins.
Reproduction: egg layer.
Tank Community: peaceful. Easy to keep.
Incompatible Species: large Archer Fish, Arowana, fin nippers.
Comments: Needs weed cover and shelter provided by plants or branches.
- Iriatherina werneri (? taxonomy)
Description: An active, small, laterally compressed and narrow fish, with two dorsal fins, one of which is sail-likeand the other has long thread-like extensions of the rays. Similar extensions are on the anal, ventral and caudal fins. Colouring is an iridescent blue, darker above, silvery below.
Distribution: Australasia: New Guinea and Cape York Peninsula Australia; eastern Australia.
Natural Habitat: pelagic;
variable conditions, pH range 7.0+; dGH range: 10.0+.
Tank Habitat: tropical, riverine, with open swimming spaces and some vegetative cover.
Diet: An omnivore.
Sexing: finnage of males is a give-away!
Reproduction: egg laying: usually attached to plants in open water.
Tank Community: a peaceful community fish; compatible with other Rainbowfish.
Incompatible Species: Fin nippers; Archer Fish.
Comments: Not an easy fish to keep; susceptible to water acidification or sudden pH drop; maintaining good water quality, with frequent water changes is essential.
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