Can neon tetras live with gold barbs?

Verdict
Yes

Yes. Neon tetras and gold barbs get along in the same tank. Both are fine at 72–75°F. Plan on at least 20 gal.

Neon tetraNeon tetra72–79°F · pH 6–7 Gold barbGold barb64–75°F · pH 6–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–75°Neon tetra 72–79°Gold barb 64–75°
The green band is the temperature range both can live in.
456789Both: 6–7Neon tetra 6–7Gold barb 6–8
The green band is the pH both tolerate.

Size to scale

Neon tetra · 1.5 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

Neon tetraGold barb
Temperature72–79 °F64–75 °F
pH6–76–8
Adult size1.5 in3.0 in
Minimum tank10 gal20 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for neon tetras

All neon tetra tank mates

Better tank mates for gold barbs

All gold barb tank mates

Questions

Can neon tetras live with gold barbs?

Yes. Neon tetras and gold barbs get along in the same tank. Both are fine at 72–75°F. Plan on at least 20 gal.

What temperature suits both neon tetras and gold barbs?

72–75 °F. Neon tetras need 72–79 °F, gold barbs need 64–75 °F.

What size tank do neon tetras and gold barbs need together?

At least 20 gal, set by the gold barb. Add space for each extra fish.