New Guinea Rainbowfish (Melanotaenia affinis)

Fish in the family Melanotaeniidae. Easy care. Freshwater.

Quick facts

Scientific nameMelanotaenia affinis

FamilyMelanotaeniidae

Also known asAffinis Rainbow, North New Guinea Rainbowfish

Care levelEasy

Reef safetyFreshwater

TemperamentPeaceful (active)

DietOmnivore

Adult size4.7 in

Minimum tank size55 gallons

Water parametersTemp 73-82°F, pH 7.0-8.0, GH 9-18 dGH

Appearance

Elongate body with reddish to blue-green flush and red-edged fins varying widely by collection locality; dominant males most colorful.

Difficulty and care for the New Guinea Rainbowfish

Easy

Origin and habitat

Papua New Guinea / Indonesia (northern New Guinea drainages; many forms)

Keeper notes

Peaceful and hardy with many locality forms traded by region. Active males display without injury.

Log New Guinea Rainbowfish in your reef tank

Reef Trak gives you the full record on every species in your tank: acquisition date, source, photos, parameters at time of stocking, and links to maintenance and feeding events. Track New Guinea Rainbowfish alongside everything else in your reef.

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