Can oscars live with chinese algae eaters?

Verdict
Yes

Yes. Oscars and chinese algae eaters make a good pair. Both are fine at 74–80°F. Plan on at least 75 gal.

OscarOscar74–81°F · pH 6–8 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: 74–80°Oscar 74–81°Chinese algae eater 74–80°
The green band is the temperature range both can live in.
456789Both: 6–8Oscar 6–8Chinese algae eater 6–8
The green band is the pH both tolerate.

Size to scale

Oscar · 12 inChinese algae eater · 10 in0"2"4"6"8"10"12"
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

OscarChinese algae eater
Temperature74–81 °F74–80 °F
pH6–86–8
Adult size12.0 in10.0 in
Minimum tank75 gal75 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atMiddleBottom
GroupAlone or in pairsAlone or in pairs
DietCarnivoreHerbivore

Better tank mates for oscars

All oscar tank mates

Better tank mates for chinese algae eaters

All chinese algae eater tank mates

Questions

Can oscars live with chinese algae eaters?

Yes. Oscars and chinese algae eaters make a good pair. Both are fine at 74–80°F. Plan on at least 75 gal.

What temperature suits both oscars and chinese algae eaters?

74–80 °F. Oscars need 74–81 °F, chinese algae eaters need 74–80 °F.

What size tank do oscars and chinese algae eaters need together?

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