Can dwarf neon rainbowfish live with kissing gouramis?

Verdict
Yes, with care

Yes, with care. Dwarf neon rainbowfish and kissing gouramis can share a tank, but watch one thing. A grown kissing gourami may treat small dwarf neon rainbowfish as food, especially at night.

Dwarf neon rainbowfishDwarf neon rainbowfish75–82°F · pH 6.5–7.5 Kissing gouramiKissing gourami72–82°F · pH 6–8

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–82°Dwarf neon rainbowfish 75–82°Kissing gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Dwarf neon rainbowfish 6.5–7.5Kissing gourami 6–8
The green band is the pH both tolerate.

Size to scale

Dwarf neon rainbowfish · 2.5 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

Dwarf neon rainbowfishKissing gourami
Temperature75–82 °F72–82 °F
pH6.5–7.56–8
Adult size2.5 in10.0 in
Minimum tank20 gal55 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleMiddle
GroupGroups of 6+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for dwarf neon rainbowfish

All dwarf neon rainbowfish tank mates

Better tank mates for kissing gouramis

All kissing gourami tank mates

Questions

Can dwarf neon rainbowfish live with kissing gouramis?

Yes, with care. Dwarf neon rainbowfish and kissing gouramis can share a tank, but watch one thing. A grown kissing gourami may treat small dwarf neon rainbowfish as food, especially at night.

What temperature suits both dwarf neon rainbowfish and kissing gouramis?

75–82 °F. Dwarf neon rainbowfish need 75–82 °F, kissing gouramis need 72–82 °F.

What size tank do dwarf neon rainbowfish and kissing gouramis need together?

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