Can white cloud minnows live with cardinal tetras?

Verdict
No

No. White cloud minnows and cardinal tetras should not share a tank. White cloud minnows are coldwater animals (60–72°F); cardinal tetras need 76–84°F. No temperature suits both.

White cloud minnowWhite cloud minnow60–72°F · pH 6–8 Cardinal tetraCardinal tetra76–84°F · pH 4.6–7

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°White cloud minnow 60–72°Cardinal tetra 76–84°
The ranges do not meet, so one of them would always be too warm or too cold.
456789Both: 6–7White cloud minnow 6–8Cardinal tetra 4.6–7
The green band is the pH both tolerate.

Size to scale

White cloud minnow · 1.5 inCardinal tetra · 2 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 minnowCardinal tetra
Temperature60–72 °F76–84 °F
pH6–84.6–7
Adult size1.5 in2.0 in
Minimum tank10 gal20 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for white cloud minnows

All white cloud minnow tank mates

Better tank mates for cardinal tetras

All cardinal tetra tank mates

Questions

Can white cloud minnows live with cardinal tetras?

No. White cloud minnows and cardinal tetras should not share a tank. White cloud minnows are coldwater animals (60–72°F); cardinal tetras need 76–84°F. No temperature suits both.

What temperature suits both white cloud minnows and cardinal tetras?

None. White cloud minnows need 60–72 °F and cardinal tetras need 76–84 °F, so the ranges do not meet.

What size tank do white cloud minnows and cardinal tetras need together?

At least 20 gal, set by the cardinal tetra. Add space for each extra fish.