Can apistogramma live with silver dollars?

Verdict
Yes

Yes, apistogramma and silver dollars can live together. Both are fine at 75–82°F. Plan on at least 75 gal.

ApistogrammaApistogramma75–84°F · pH 5–7 Silver dollarSilver dollar75–82°F · pH 5–7

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–82°Apistogramma 75–84°Silver dollar 75–82°
The green band is the temperature range both can live in.
456789Both: 5–7Apistogramma 5–7Silver dollar 5–7
The green band is the pH both tolerate.

Size to scale

Apistogramma · 3 inSilver dollar · 6 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

ApistogrammaSilver dollar
Temperature75–84 °F75–82 °F
pH5–75–7
Adult size3.0 in6.0 in
Minimum tank20 gal75 gal
TemperamentSemi-aggressivePeaceful
Swims atBottomMiddle
GroupAlone or in pairsGroups of 5+
DietCarnivoreHerbivore

Better tank mates for apistogramma

All apistogramma tank mates

Better tank mates for silver dollars

All silver dollar tank mates

Questions

Can apistogramma live with silver dollars?

Yes, apistogramma and silver dollars can live together. Both are fine at 75–82°F. Plan on at least 75 gal.

What temperature suits both apistogramma and silver dollars?

75–82 °F. Apistogramma need 75–84 °F, silver dollars need 75–82 °F.

What size tank do apistogramma and silver dollars need together?

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