Can angelfish live with killifish?

Verdict
Yes, with care

Yes, with care. Angelfish and killifish can share a tank, but watch one thing. They only share 76–77°F. Keep the heater set there and steady.

AngelfishAngelfish76–84°F · pH 6–7.5 KillifishKillifish70–77°F · pH 5.5–7

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 76–77°Angelfish 76–84°Killifish 70–77°
The green band is the temperature range both can live in.
456789Both: 6–7Angelfish 6–7.5Killifish 5.5–7
The green band is the pH both tolerate.

Size to scale

Angelfish · 6 inKillifish · 2.5 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

AngelfishKillifish
Temperature76–84 °F70–77 °F
pH6–7.55.5–7
Adult size6.0 in2.5 in
Minimum tank30 gal10 gal
TemperamentSemi-aggressivePeaceful
Swims atMiddleTop
GroupAlone or in pairsAlone or in pairs
DietOmnivoreCarnivore

Better tank mates for angelfish

All angelfish tank mates

Better tank mates for killifish

All killifish tank mates

Questions

Can angelfish live with killifish?

Yes, with care. Angelfish and killifish can share a tank, but watch one thing. They only share 76–77°F. Keep the heater set there and steady.

What temperature suits both angelfish and killifish?

76–77 °F. Angelfish need 76–84 °F, killifish need 70–77 °F.

What size tank do angelfish and killifish need together?

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