Can silver dollars live with chinese algae eaters?

Verdict
Yes

Yes. Silver dollars and chinese algae eaters make a good pair. Both are fine at 75–80°F. Plan on at least 75 gal.

Silver dollarSilver dollar75–82°F · pH 5–7 Chinese algae eaterChinese algae eater74–80°F · pH 6–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–80°Silver dollar 75–82°Chinese algae eater 74–80°
The green band is the temperature range both can live in.
456789Both: 6–7Silver dollar 5–7Chinese algae eater 6–8
The green band is the pH both tolerate.

Size to scale

Silver dollar · 6 inChinese algae eater · 10 in0"2"4"6"8"10"
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 dollarChinese algae eater
Temperature75–82 °F74–80 °F
pH5–76–8
Adult size6.0 in10.0 in
Minimum tank75 gal75 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleBottom
GroupGroups of 5+Alone or in pairs
DietHerbivoreHerbivore

Better tank mates for silver dollars

All silver dollar tank mates

Better tank mates for chinese algae eaters

All chinese algae eater tank mates

Questions

Can silver dollars live with chinese algae eaters?

Yes. Silver dollars and chinese algae eaters make a good pair. Both are fine at 75–80°F. Plan on at least 75 gal.

What temperature suits both silver dollars and chinese algae eaters?

75–80 °F. Silver dollars need 75–82 °F, chinese algae eaters need 74–80 °F.

What size tank do silver dollars and chinese algae eaters need together?

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