Pygmy Rainbowfish (Melanotaenia pygmaea)

Fish in the family Melanotaeniidae. Moderate care. Freshwater.

Pygmy Rainbowfish

Quick facts

Scientific nameMelanotaenia pygmaea
FamilyMelanotaeniidae
Also known asPygmaea Rainbow, Dwarf Kimberley Rainbowfish
Care levelModerate
Reef safetyFreshwater
TemperamentPeaceful (active)
DietOmnivore
Adult size2.4 in
Minimum tank size20 gallons
Water parametersTemp 72-84°F, pH 6.5-8.0, GH 6-16 dGH

Appearance

Small silvery body with subtle yellow-orange fins; dominant males show a warmer flush during display.

Difficulty and care for the Pygmy Rainbowfish

Moderate

Origin and habitat

Australia (Prince Regent / Kimberley region)

Keeper notes

Peaceful dwarf Melanotaenia; one of the smallest in the genus. Uncommon in the trade. Males display harmlessly in groups.

Log Pygmy 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 Pygmy Rainbowfish alongside everything else in your reef.