Can white cloud minnows live with harlequin rasboras?

Verdict
No

No. White cloud minnows and harlequin rasboras should not share a tank. White cloud minnows are coldwater animals (60–72°F); harlequin rasboras need 72–80°F. They meet only at 72°F, the edge of both ranges.

White cloud minnowWhite cloud minnow60–72°F · pH 6–8 Harlequin rasboraHarlequin rasbora72–80°F · pH 6–7.5

What to watch

What works

Water side by side

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

Size to scale

White cloud minnow · 1.5 inHarlequin rasbora · 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 minnowHarlequin rasbora
Temperature60–72 °F72–80 °F
pH6–86–7.5
Adult size1.5 in2.0 in
Minimum tank10 gal10 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 harlequin rasboras

All harlequin rasbora tank mates

Questions

Can white cloud minnows live with harlequin rasboras?

No. White cloud minnows and harlequin rasboras should not share a tank. White cloud minnows are coldwater animals (60–72°F); harlequin rasboras need 72–80°F. They meet only at 72°F, the edge of both ranges.

What temperature suits both white cloud minnows and harlequin rasboras?

72–72 °F. White cloud minnows need 60–72 °F, harlequin rasboras need 72–80 °F.

What size tank do white cloud minnows and harlequin rasboras need together?

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