Can rummy nose tetras live with gold barbs?

Verdict
Yes, with care

Yes, with care. Rummy nose tetras and gold barbs can share a tank, but watch one thing. They only share 75°F. Keep the heater set there and steady.

Rummy nose tetraRummy nose tetra75–84°F · pH 5.5–7 Gold barbGold barb64–75°F · pH 6–8

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 75°Rummy nose tetra 75–84°Gold barb 64–75°
The green band is the temperature range both can live in.
456789Both: 6–7Rummy nose tetra 5.5–7Gold barb 6–8
The green band is the pH both tolerate.

Size to scale

Rummy nose tetra · 2 inGold barb · 3 in0"1"2"3"4"5"6"
Adult length in an aquarium. A fish can swallow anything that fits in its mouth, roughly a third to half its own length for predators.

Care at a glance

Rummy nose tetraGold barb
Temperature75–84 °F64–75 °F
pH5.5–76–8
Adult size2.0 in3.0 in
Minimum tank20 gal20 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for rummy nose tetras

All rummy nose tetra tank mates

Better tank mates for gold barbs

All gold barb tank mates

Questions

Can rummy nose tetras live with gold barbs?

Yes, with care. Rummy nose tetras and gold barbs can share a tank, but watch one thing. They only share 75°F. Keep the heater set there and steady.

What temperature suits both rummy nose tetras and gold barbs?

75–75 °F. Rummy nose tetras need 75–84 °F, gold barbs need 64–75 °F.

What size tank do rummy nose tetras and gold barbs need together?

At least 20 gal, set by the rummy nose tetra. Add space for each extra fish.