Melanotaeniidaefreshwater fishintermediate

Lake Wanam Rainbowfish

Glossolepis wanamensis

Also known as: Lake Wanam Rainbowfish

Origin: Papua New Guinea (Lake Wanam)

L

Water Parameters

Temperature2428 °C
15 °C35 °C
pH7.58.5
49
GH (Hardness)818 °dGH
0 °dGH30 °dGH
KH (Alkalinity)310 °dKH
0 °dKH20 °dKH

Quick Stats

Max Size
9 cm
Min Tank
100 L
Lifespan
4-6
Swimming Level
middle
Schooling
Yes (6–10+)
Diet
omnivore
Temperament
active, peaceful schooling fish

About

Glossolepis wanamensis is endemic to the tiny Lake Wanam near Lae in Morobe Province, Papua New Guinea. Introductions of predatory fish have nearly wiped out wild populations, making the aquarium hobby an important refuge for the species. Males display stunning deep green-teal colouration with vivid red fins. Requires similar care to other Glossolepis species with good water quality and regular feeding.

Care Guide

Water: 24–28°C, pH 7.5–8.5, moderately hard to hard water. Tank: 100 L+, clean water with regular partial changes; good filtration. Feeding: Omnivore; quality flakes, pellets, and frozen/live foods for best colour. Behaviour: Active, peaceful schooling fish; males display intense colour when well-kept. Compatibility: Good community fish; an important conservation species to support.

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