Can sparkling gouramis live with congo tetras?

Verdict
Yes

Yes, sparkling gouramis and congo tetras can live together. Both are fine at 73–82°F. Plan on at least 30 gal.

Sparkling gouramiSparkling gourami72–82°F · pH 6–7.5 Congo tetraCongo tetra73–82°F · pH 6–7.5

Why it works

Water side by side

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

Size to scale

Sparkling gourami · 1.5 inCongo tetra · 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

Sparkling gouramiCongo tetra
Temperature72–82 °F73–82 °F
pH6–7.56–7.5
Adult size1.5 in3.0 in
Minimum tank5 gal30 gal
TemperamentPeacefulPeaceful
Swims atTopMiddle
GroupGroups of 4+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for sparkling gouramis

All sparkling gourami tank mates

Better tank mates for congo tetras

All congo tetra tank mates

Questions

Can sparkling gouramis live with congo tetras?

Yes, sparkling gouramis and congo tetras can live together. Both are fine at 73–82°F. Plan on at least 30 gal.

What temperature suits both sparkling gouramis and congo tetras?

73–82 °F. Sparkling gouramis need 72–82 °F, congo tetras need 73–82 °F.

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

At least 30 gal, set by the congo tetra. Add space for each extra fish.