Max Size: up to 5.5 cm

Forktail Blue Eye Rainbowfish (Pseudomugil furcatus)

The Forktail Blue-eye Rainbowfish is a small, hardy, adaptable and peaceful species and is easy to keep making them ideal for beginner aquarists as well as more advanced aquarists.

Their colours are beautiful and impressive, they display yellow pelvic fins, and the upper edge of the pectoral fins is also yellow. The caudal fin has thin black upper and lower edges.

The Forktail Blue-eye displays a grey-greenish body, yellow pelvic fins, and the upper edge of the pectoral fins is also yellow. The caudal fin has thin black upper and lower edges.

Quick Facts
Scientific NamePseudomugil furcatus
Other NamesForktailed Rainbowfish, Blue Eye Forktail Rainbowfish
FamilyMelanotaeniidae
GenusPseudomugil
OriginsEastern Papua New Guinea
TemperamentPeaceful
Aquarium LevelMiddle
DifficultyBeginner
ShoalingYes
Best kept asGroups 5+
DietOmnivore
ReproductionEgg-Layer
Lifespanup to 3 year
Water Parameters
Water TypeFreshwater
Temperature75 - 79 ℉ (23.9 - 26.1 ℃)
PH6.0 - 8.0
GH8 - 18
KH5 - 12
Male Forktail Blue-Eye Rainbow Fish
Forktail Blue-Eye Rainbow Fish
Forktail Blue-Eye Rainbow Fish
Forktail Blue-Eye Rainbow Fish
Forktail Blue-Eye Rainbow Fish
Forktail Blue-Eye Rainbow Fish
Forktail Blue-Eye Rainbow Fish

Habitat

The Forktail Blue-eye Rainbow Fish lives in lowland slow-moving streams in the Eastern part of Papua New Guinea. You can find these fishes from Collingwood Bay to Dyke Ackland Bay. It seems to prefer clear and densely grown rainforest streams, with a dark, fine, sandy or rocky substrate.

Other Rainbowfish of interest

Banded Rainbowfish(Melanotaenia trifasciata)
Boesemans Rainbowfish(Melanotaenia Boesemani)
Celebes Rainbowfish(Marosatherina ladigesi)
Dwarf Neon Rainbowfish(Melanotaenia praecox)
Honey Blue Eye Rainbowfish(Pseudomugil Mellis)
Lake Kutubu Rainbowfish(Melanotaenia lacustris)
View All Rainbowfish

Diet & Feeding

These Rainbowfish are easy to feed and have no special requirements when it comes to what they eat.

Provide them with a varied diet of micro pellets, flakes and granules as well as small frozen, live and freeze-dried foods such as baby brine shrimp, Cyclops and Daphnia.

Sexual Dimorphism

you can differentiate a female from a male quite easily. The males have brighter colouring and a more curved, more vivid and impressive fin shape than the females.

Breeding

The Forktail Blue-eye can be bred in groups or pairs. They will generally become sexually mature when they are around 3-4 months old.

A densely planted aquarium of java moss or equivalent is advised for breeding purposes as it will make the fish feel more comfortable.

The male will display a show by swimming back and forth in the aquarium while keeping his anal, dorsal and pelvic fins in an erect position.

He can be a little pushy towards the female, but if he becomes aggressive, you should separate them because they are more than likely not compatible, and the female may get hurt if she is made to stay with him.

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Date Added: 13/08/2020 - Updated: 13/08/2020 09:29:23