Can silver dollars live with elephant nose fish?

Verdict
Yes

Yes. Silver dollars and elephant nose fish get along in the same tank. Both are fine at 75–82°F. Plan on at least 75 gal.

Silver dollarSilver dollar75–82°F · pH 5–7 Elephant nose fishElephant nose fish73–82°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–82°Silver dollar 75–82°Elephant nose fish 73–82°
The green band is the temperature range both can live in.
456789Both: 6–7Silver dollar 5–7Elephant nose fish 6–7.5
The green band is the pH both tolerate.

Size to scale

Silver dollar · 6 inElephant nose fish · 9 in0"1"2"3"4"5"6"7"8"9"
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 dollarElephant nose fish
Temperature75–82 °F73–82 °F
pH5–76–7.5
Adult size6.0 in9.0 in
Minimum tank75 gal55 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleBottom
GroupGroups of 5+Alone or in pairs
DietHerbivoreCarnivore

Better tank mates for silver dollars

All silver dollar tank mates

Better tank mates for elephant nose fish

All elephant nose fish tank mates

Questions

Can silver dollars live with elephant nose fish?

Yes. Silver dollars and elephant nose fish get along in the same tank. Both are fine at 75–82°F. Plan on at least 75 gal.

What temperature suits both silver dollars and elephant nose fish?

75–82 °F. Silver dollars need 75–82 °F, elephant nose fish need 73–82 °F.

What size tank do silver dollars and elephant nose fish need together?

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