Can neon tetras live with pearl gouramis?

Verdict
Yes

Yes, neon tetras and pearl gouramis can live together. Both are fine at 77–79°F. Plan on at least 30 gal.

Neon tetraNeon tetra72–79°F · pH 6–7 Pearl gouramiPearl gourami77–82°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 77–79°Neon tetra 72–79°Pearl gourami 77–82°
The green band is the temperature range both can live in.
456789Both: 6–7Neon tetra 6–7Pearl gourami 6–7.5
The green band is the pH both tolerate.

Size to scale

Neon tetra · 1.5 inPearl 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 tetraPearl gourami
Temperature72–79 °F77–82 °F
pH6–76–7.5
Adult size1.5 in5.0 in
Minimum tank10 gal30 gal
TemperamentPeacefulPeaceful
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 pearl gouramis

All pearl gourami tank mates

Questions

Can neon tetras live with pearl gouramis?

Yes, neon tetras and pearl gouramis can live together. Both are fine at 77–79°F. Plan on at least 30 gal.

What temperature suits both neon tetras and pearl gouramis?

77–79 °F. Neon tetras need 72–79 °F, pearl gouramis need 77–82 °F.

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

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