Can white cloud minnows live with killifish?

Verdict
No

No. White cloud minnows and killifish should not share a tank. White cloud minnows are coldwater animals (60–72°F); killifish need 70–77°F. They overlap only at 70–72°F, the edge of both ranges.

White cloud minnowWhite cloud minnow60–72°F · pH 6–8 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: 70–72°White cloud minnow 60–72°Killifish 70–77°
The green band is the temperature range both can live in.
456789Both: 6–7White cloud minnow 6–8Killifish 5.5–7
The green band is the pH both tolerate.

Size to scale

White cloud minnow · 1.5 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

White cloud minnowKillifish
Temperature60–72 °F70–77 °F
pH6–85.5–7
Adult size1.5 in2.5 in
Minimum tank10 gal10 gal
TemperamentPeacefulPeaceful
Swims atMiddleTop
GroupGroups of 6+Alone or in pairs
DietOmnivoreCarnivore

Better tank mates for white cloud minnows

All white cloud minnow tank mates

Better tank mates for killifish

All killifish tank mates

Questions

Can white cloud minnows live with killifish?

No. White cloud minnows and killifish should not share a tank. White cloud minnows are coldwater animals (60–72°F); killifish need 70–77°F. They overlap only at 70–72°F, the edge of both ranges.

What temperature suits both white cloud minnows and killifish?

70–72 °F. White cloud minnows need 60–72 °F, killifish need 70–77 °F.

What size tank do white cloud minnows and killifish need together?

At least 10 gal, set by the white cloud minnow. Add space for each extra fish.