Can killifish live with kribensis?

Verdict
Yes

Yes. Killifish and kribensis get along in the same tank. Both are fine at 75–77°F. Plan on at least 30 gal.

KillifishKillifish70–77°F · pH 5.5–7 KribensisKribensis75–80°F · pH 6–7.5

Why it works

Water side by side

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

Size to scale

Killifish · 2.5 inKribensis · 4 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

KillifishKribensis
Temperature70–77 °F75–80 °F
pH5.5–76–7.5
Adult size2.5 in4.0 in
Minimum tank10 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atTopBottom
GroupAlone or in pairsAlone or in pairs
DietCarnivoreOmnivore

Better tank mates for killifish

All killifish tank mates

Better tank mates for kribensis

All kribensis tank mates

Questions

Can killifish live with kribensis?

Yes. Killifish and kribensis get along in the same tank. Both are fine at 75–77°F. Plan on at least 30 gal.

What temperature suits both killifish and kribensis?

75–77 °F. Killifish need 70–77 °F, kribensis need 75–80 °F.

What size tank do killifish and kribensis need together?

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