Can silver dollars live with gold barbs?

Verdict
Yes, with care

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

Silver dollarSilver dollar75–82°F · pH 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°Silver dollar 75–82°Gold barb 64–75°
The green band is the temperature range both can live in.
456789Both: 6–7Silver dollar 5–7Gold barb 6–8
The green band is the pH both tolerate.

Size to scale

Silver dollar · 6 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

Silver dollarGold barb
Temperature75–82 °F64–75 °F
pH5–76–8
Adult size6.0 in3.0 in
Minimum tank75 gal20 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 5+Groups of 6+
DietHerbivoreOmnivore

Better tank mates for silver dollars

All silver dollar tank mates

Better tank mates for gold barbs

All gold barb tank mates

Questions

Can silver dollars live with gold barbs?

Yes, with care. Silver dollars 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 silver dollars and gold barbs?

75–75 °F. Silver dollars need 75–82 °F, gold barbs need 64–75 °F.

What size tank do silver dollars and gold barbs need together?

At least 75 gal, set by the silver dollar. Add space for each extra fish.