Can killifish live with kissing gouramis?

Verdict

Yes, with care

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

Killifish70–77°F · pH 5.5–7

Kissing gourami72–82°F · pH 6–8

What to watch

Watch outA grown kissing gourami may treat small killifish as food, especially at night.

What works

Both are fine at 72–77°F.
pH 6–7 suits both.
They use different parts of the tank: killifish the top, kissing gouramis the mid.

Water side by side

The green band is the temperature range both can live in.

The green band is the pH both tolerate.

Size to scale

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

	Killifish	Kissing gourami
Temperature	70–77 °F	72–82 °F
pH	5.5–7	6–8
Adult size	2.5 in	10.0 in
Minimum tank	10 gal	55 gal
Temperament	Peaceful	Semi-aggressive
Swims at	Top	Middle
Group	Alone or in pairs	Alone or in pairs
Diet	Carnivore	Omnivore

Better tank mates for killifish

All killifish tank mates

Better tank mates for kissing gouramis

All kissing gourami tank mates

Questions

Can killifish live with kissing gouramis?

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

What temperature suits both killifish and kissing gouramis?

72–77 °F. Killifish need 70–77 °F, kissing gouramis need 72–82 °F.

What size tank do killifish and kissing gouramis need together?

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