January Tetra (Hemigrammus hyanuary)

Fish in the family Characidae. Easy care. Freshwater.

Quick facts

Scientific nameHemigrammus hyanuary

FamilyCharacidae

Also known asGreen Neon Tetra (misnomer), Costello Tetra (confused)

Care levelEasy

Reef safetyFreshwater

TemperamentPeaceful

Dietomnivore

Adult size1.6 in

Minimum tank size15 gallons

Water parametersTemp 73-82°F, pH 5.5-7.5, GH 2-15 dGH

Appearance

Silvery body with a faint greenish-gold sheen and a small dark spot ringed in gold at the tail base.

Difficulty and care for the January Tetra

Easy

Origin and habitat

Brazil, Peru (Amazon basin, Lago Hyanuary)

Keeper notes

Peaceful small schooler; shrimp- and plant-safe.

Log January Tetra 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 January Tetra alongside everything else in your reef.

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