Can dwarf gouramis live with zebra loaches?

Verdict
Yes

Yes. Dwarf gouramis and zebra loaches make a good pair. Both are fine at 73–79°F. Plan on at least 30 gal.

Dwarf gouramiDwarf gourami72–82°F · pH 6–7.5 Zebra loachZebra loach73–79°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 73–79°Dwarf gourami 72–82°Zebra loach 73–79°
The green band is the temperature range both can live in.
456789Both: 6–7.5Dwarf gourami 6–7.5Zebra loach 6–7.5
The green band is the pH both tolerate.

Size to scale

Dwarf gourami · 3 inZebra loach · 3.5 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

Dwarf gouramiZebra loach
Temperature72–82 °F73–79 °F
pH6–7.56–7.5
Adult size3.0 in3.5 in
Minimum tank10 gal30 gal
TemperamentPeacefulPeaceful
Swims atTopBottom
GroupAlone or in pairsGroups of 5+
DietOmnivoreOmnivore

Better tank mates for dwarf gouramis

All dwarf gourami tank mates

Better tank mates for zebra loaches

All zebra loach tank mates

Questions

Can dwarf gouramis live with zebra loaches?

Yes. Dwarf gouramis and zebra loaches make a good pair. Both are fine at 73–79°F. Plan on at least 30 gal.

What temperature suits both dwarf gouramis and zebra loaches?

73–79 °F. Dwarf gouramis need 72–82 °F, zebra loaches need 73–79 °F.

What size tank do dwarf gouramis and zebra loaches need together?

At least 30 gal, set by the zebra loach. Add space for each extra fish.