Slender Rainbowfish (Melanotaenia gracilis)

Fish in the family Melanotaeniidae. Easy care. Freshwater.

Quick facts

Scientific nameMelanotaenia gracilis

FamilyMelanotaeniidae

Also known asGracilis Rainbow

Care levelEasy

Reef safetyFreshwater

TemperamentPeaceful (active)

DietOmnivore

Adult size3.5 in

Minimum tank size40 gallons

Water parametersTemp 72-86°F, pH 6.5-8.0, GH 6-16 dGH

Appearance

Slim silvery body with a faint lateral stripe and yellow-orange fin tones; dominant males flush warmer color during display.

Difficulty and care for the Slender Rainbowfish

Easy

Origin and habitat

Australia (Kimberley region, northwestern Australia)

Keeper notes

Peaceful, slender, hardy schooler tolerant of warm water. Active males display without injury.

Log Slender 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 Slender Rainbowfish alongside everything else in your reef.

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