Can upside down catfish live with dwarf gouramis?

Verdict
Yes

Yes, upside down catfish and dwarf gouramis can live together. Both are fine at 72–79°F. Plan on at least 30 gal.

Upside down catfishUpside down catfish72–79°F · pH 6–7.5 Dwarf gouramiDwarf gourami72–82°F · pH 6–7.5

Why it works

Water side by side

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

Size to scale

Upside down catfish · 4 inDwarf gourami · 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

Upside down catfishDwarf gourami
Temperature72–79 °F72–82 °F
pH6–7.56–7.5
Adult size4.0 in3.0 in
Minimum tank30 gal10 gal
TemperamentPeacefulPeaceful
Swims atBottomTop
GroupGroups of 3+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for upside down catfish

All upside down catfish tank mates

Better tank mates for dwarf gouramis

All dwarf gourami tank mates

Questions

Can upside down catfish live with dwarf gouramis?

Yes, upside down catfish and dwarf gouramis can live together. Both are fine at 72–79°F. Plan on at least 30 gal.

What temperature suits both upside down catfish and dwarf gouramis?

72–79 °F. Upside down catfish need 72–79 °F, dwarf gouramis need 72–82 °F.

What size tank do upside down catfish and dwarf gouramis need together?

At least 30 gal, set by the upside down catfish. Add space for each extra fish.