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Rummynose Tetra Care & Compatibility

Hemigrammus rhodostomus

A tight-schooling tetra with a glowing red nose and striped tail. Its red nose fades when water quality slips, making it a living water-quality gauge.

Min 20 gal 2" adult Peaceful Moderate care 75-84°F

Care requirements

Scientific nameHemigrammus rhodostomus
GroupTetra
Adult size2 in (5.1 cm)
Minimum tank20 gallons
Temperature75-84°F
pH5.5-7
Hardness2-8 dGH
TemperamentPeaceful
SocialSchooling (keep 6+)
DietOmnivore
Swim levelMid
Care levelModerate
Lifespan~5 years

Quick answers: tank size · temperature · pH & hardness · tank mates

Best tankmates for Rummynose Tetra

Neon Tetra
Ok · 20 gal+
Cardinal Tetra
Ok · 20 gal+
Guppy
Ok · 20 gal+
Endler's Livebearer
Ok · 20 gal+
Platy
Ok · 20 gal+
Swordtail
Ok · 20 gal+
Dwarf Gourami
Ok · 20 gal+
Pearl Gourami
Ok · 30 gal+
Honey Gourami
Ok · 20 gal+
Discus
Ok · 55 gal+

Avoid keeping with

Common Goldfish
Not recommended

Frequently asked questions

What size tank does a Rummynose Tetra need?

A Rummynose Tetra needs a minimum of 20 gallons. Because it is a schooling fish, keep a group of at least 6, which may require more space.

Is the Rummynose Tetra good for beginners?

The Rummynose Tetra is rated moderate to care for. It suits keepers with a little experience and a stable, cycled tank.

What water parameters does a Rummynose Tetra need?

Keep Rummynose Tetra at 75-84°F, pH 5.5-7, and hardness 2-8 dGH.

How many Rummynose Tetra should I keep together?

Keep at least 6 together — they are happier and less stressed in a group.

Plan a tank with Rummynose Tetra →