Can guppies live with blue gouramis?

Verdict
Yes

Yes, guppies and blue gouramis can live together. Both are fine at 72–82°F. Plan on at least 30 gal.

GuppyGuppy72–82°F · pH 6.8–7.8 Blue gouramiBlue gourami72–82°F · pH 6–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–82°Guppy 72–82°Blue gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6.8–7.8Guppy 6.8–7.8Blue gourami 6–8
The green band is the pH both tolerate.

Size to scale

Guppy · 2 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

GuppyBlue gourami
Temperature72–82 °F72–82 °F
pH6.8–7.86–8
Adult size2.0 in5.0 in
Minimum tank10 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atTopTop
GroupGroups of 3+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for guppies

All guppy tank mates

Better tank mates for blue gouramis

All blue gourami tank mates

Questions

Can guppies live with blue gouramis?

Yes, guppies and blue gouramis can live together. Both are fine at 72–82°F. Plan on at least 30 gal.

What temperature suits both guppies and blue gouramis?

72–82 °F. Guppies need 72–82 °F, blue gouramis need 72–82 °F.

What size tank do guppies and blue gouramis need together?

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