Can white cloud minnows live with rosy barbs?

Verdict
Yes

Yes. White cloud minnows and rosy barbs make a good pair. Both are fine at 64–72°F. Plan on at least 30 gal.

White cloud minnowWhite cloud minnow60–72°F · pH 6–8 Rosy barbRosy barb64–77°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 64–72°White cloud minnow 60–72°Rosy barb 64–77°
The green band is the temperature range both can live in.
456789Both: 6–7.5White cloud minnow 6–8Rosy barb 6–7.5
The green band is the pH both tolerate.

Size to scale

White cloud minnow · 1.5 inRosy barb · 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

White cloud minnowRosy barb
Temperature60–72 °F64–77 °F
pH6–86–7.5
Adult size1.5 in4.0 in
Minimum tank10 gal30 gal
TemperamentPeacefulSemi-aggressive
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 rosy barbs

All rosy barb tank mates

Questions

Can white cloud minnows live with rosy barbs?

Yes. White cloud minnows and rosy barbs make a good pair. Both are fine at 64–72°F. Plan on at least 30 gal.

What temperature suits both white cloud minnows and rosy barbs?

64–72 °F. White cloud minnows need 60–72 °F, rosy barbs need 64–77 °F.

What size tank do white cloud minnows and rosy barbs need together?

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