Can bettas live with blue gouramis?

Verdict
No

No. Bettas and blue gouramis should not share a tank. Bettas and blue gouramis are both labyrinth fish and tend to fight over the surface.

BettaBetta76–82°F · pH 6.5–7.5 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: 76–82°Betta 76–82°Blue gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Betta 6.5–7.5Blue gourami 6–8
The green band is the pH both tolerate.

Size to scale

Betta · 2.5 inBlue gourami · 5 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

BettaBlue gourami
Temperature76–82 °F72–82 °F
pH6.5–7.56–8
Adult size2.5 in5.0 in
Minimum tank5 gal30 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atTopTop
GroupOne per tankAlone or in pairs
DietCarnivoreOmnivore

Better tank mates for bettas

All betta tank mates

Better tank mates for blue gouramis

All blue gourami tank mates

Questions

Can bettas live with blue gouramis?

No. Bettas and blue gouramis should not share a tank. Bettas and blue gouramis are both labyrinth fish and tend to fight over the surface.

What temperature suits both bettas and blue gouramis?

76–82 °F. Bettas need 76–82 °F, blue gouramis need 72–82 °F.

What size tank do bettas and blue gouramis need together?

At least 30 gal, set by the blue gourami. Add space for each extra fish.