Can serpae tetras live with gold barbs?

Verdict
Yes

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

Serpae tetraSerpae tetra72–79°F · pH 6–7.5 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°Serpae tetra 72–79°Gold barb 64–75°
The green band is the temperature range both can live in.
456789Both: 6–7.5Serpae tetra 6–7.5Gold barb 6–8
The green band is the pH both tolerate.

Size to scale

Serpae tetra · 1.75 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

Serpae tetraGold barb
Temperature72–79 °F64–75 °F
pH6–7.56–8
Adult size1.75 in3.0 in
Minimum tank20 gal20 gal
TemperamentSemi-aggressivePeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for serpae tetras

All serpae tetra tank mates

Better tank mates for gold barbs

All gold barb tank mates

Questions

Can serpae tetras live with gold barbs?

Yes. Serpae 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 serpae tetras and gold barbs?

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

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

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