Can blue gouramis live with dwarf gouramis?

Verdict
Yes

Yes. Blue gouramis and dwarf gouramis get along in the same tank. Both are fine at 72–82°F. Plan on at least 30 gal.

Blue gouramiBlue gourami72–82°F · pH 6–8 Dwarf gouramiDwarf gourami72–82°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–82°Blue gourami 72–82°Dwarf gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6–7.5Blue gourami 6–8Dwarf gourami 6–7.5
The green band is the pH both tolerate.

Size to scale

Blue gourami · 5 inDwarf gourami · 3 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

Blue gouramiDwarf gourami
Temperature72–82 °F72–82 °F
pH6–86–7.5
Adult size5.0 in3.0 in
Minimum tank30 gal10 gal
TemperamentSemi-aggressivePeaceful
Swims atTopTop
GroupAlone or in pairsAlone or in pairs
DietOmnivoreOmnivore

Better tank mates for blue gouramis

All blue gourami tank mates

Better tank mates for dwarf gouramis

All dwarf gourami tank mates

Questions

Can blue gouramis live with dwarf gouramis?

Yes. Blue gouramis and dwarf gouramis get along in the same tank. Both are fine at 72–82°F. Plan on at least 30 gal.

What temperature suits both blue gouramis and dwarf gouramis?

72–82 °F. Blue gouramis need 72–82 °F, dwarf gouramis need 72–82 °F.

What size tank do blue gouramis and dwarf gouramis need together?

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