Can congo tetras live with kissing gouramis?

Verdict
Yes

Yes, congo tetras and kissing gouramis can live together. Both are fine at 73–82°F. Plan on at least 55 gal.

Congo tetraCongo tetra73–82°F · pH 6–7.5 Kissing gouramiKissing gourami72–82°F · pH 6–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 73–82°Congo tetra 73–82°Kissing gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6–7.5Congo tetra 6–7.5Kissing gourami 6–8
The green band is the pH both tolerate.

Size to scale

Congo tetra · 3 inKissing gourami · 10 in0"2"4"6"8"10"
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

Congo tetraKissing gourami
Temperature73–82 °F72–82 °F
pH6–7.56–8
Adult size3.0 in10.0 in
Minimum tank30 gal55 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleMiddle
GroupGroups of 6+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for congo tetras

All congo tetra tank mates

Better tank mates for kissing gouramis

All kissing gourami tank mates

Questions

Can congo tetras live with kissing gouramis?

Yes, congo tetras and kissing gouramis can live together. Both are fine at 73–82°F. Plan on at least 55 gal.

What temperature suits both congo tetras and kissing gouramis?

73–82 °F. Congo tetras need 73–82 °F, kissing gouramis need 72–82 °F.

What size tank do congo tetras and kissing gouramis need together?

At least 55 gal, set by the kissing gourami. Add space for each extra fish.