Can neon tetras live with blue gouramis?

Verdict
Yes

Yes. Neon tetras and blue gouramis make a good pair. Both are fine at 72–79°F. Plan on at least 30 gal.

Neon tetraNeon tetra72–79°F · pH 6–7 Blue gouramiBlue gourami72–82°F · pH 6–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–79°Neon tetra 72–79°Blue gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6–7Neon tetra 6–7Blue gourami 6–8
The green band is the pH both tolerate.

Size to scale

Neon tetra · 1.5 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

Neon tetraBlue gourami
Temperature72–79 °F72–82 °F
pH6–76–8
Adult size1.5 in5.0 in
Minimum tank10 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleTop
GroupGroups of 6+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for neon tetras

All neon tetra tank mates

Better tank mates for blue gouramis

All blue gourami tank mates

Questions

Can neon tetras live with blue gouramis?

Yes. Neon tetras and blue gouramis make a good pair. Both are fine at 72–79°F. Plan on at least 30 gal.

What temperature suits both neon tetras and blue gouramis?

72–79 °F. Neon tetras need 72–79 °F, blue gouramis need 72–82 °F.

What size tank do neon tetras and blue gouramis need together?

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