Can gold barbs live with dwarf neon rainbowfish?

Verdict
Yes, with care

Yes, with care. Gold barbs and dwarf neon rainbowfish can share a tank, but watch one thing. They only share 75°F. Keep the heater set there and steady.

Gold barbGold barb64–75°F · pH 6–8 Dwarf neon rainbowfishDwarf neon rainbowfish75–82°F · pH 6.5–7.5

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 75°Gold barb 64–75°Dwarf neon rainbowfish 75–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Gold barb 6–8Dwarf neon rainbowfish 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Gold barb · 3 inDwarf neon rainbowfish · 2.5 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

Gold barbDwarf neon rainbowfish
Temperature64–75 °F75–82 °F
pH6–86.5–7.5
Adult size3.0 in2.5 in
Minimum tank20 gal20 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for gold barbs

All gold barb tank mates

Better tank mates for dwarf neon rainbowfish

All dwarf neon rainbowfish tank mates

Questions

Can gold barbs live with dwarf neon rainbowfish?

Yes, with care. Gold barbs and dwarf neon rainbowfish can share a tank, but watch one thing. They only share 75°F. Keep the heater set there and steady.

What temperature suits both gold barbs and dwarf neon rainbowfish?

75–75 °F. Gold barbs need 64–75 °F, dwarf neon rainbowfish need 75–82 °F.

What size tank do gold barbs and dwarf neon rainbowfish need together?

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