Can oscars live with blue gouramis?

Verdict
No

No. Oscars and blue gouramis should not share a tank. An adult oscar eats fish that fit in its mouth, and at 5 inches blue gouramis do.

OscarOscar74–81°F · pH 6–8 Blue gouramiBlue gourami72–82°F · pH 6–8

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 74–81°Oscar 74–81°Blue gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6–8Oscar 6–8Blue gourami 6–8
The green band is the pH both tolerate.

Size to scale

Oscar · 12 inBlue gourami · 5 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

OscarBlue gourami
Temperature74–81 °F72–82 °F
pH6–86–8
Adult size12.0 in5.0 in
Minimum tank75 gal30 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atMiddleTop
GroupAlone or in pairsAlone or in pairs
DietCarnivoreOmnivore

Better tank mates for oscars

All oscar tank mates

Better tank mates for blue gouramis

All blue gourami tank mates

Questions

Can oscars live with blue gouramis?

No. Oscars and blue gouramis should not share a tank. An adult oscar eats fish that fit in its mouth, and at 5 inches blue gouramis do.

What temperature suits both oscars and blue gouramis?

74–81 °F. Oscars need 74–81 °F, blue gouramis need 72–82 °F.

What size tank do oscars and blue gouramis need together?

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