Can nerite snails live with harlequin rasboras?

Verdict
Yes

Yes. Nerite snails and harlequin rasboras get along in the same tank. Both are fine at 72–78°F. Plan on at least 10 gal.

Nerite snailNerite snail72–78°F · pH 7–8.5 Harlequin rasboraHarlequin rasbora72–80°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–78°Nerite snail 72–78°Harlequin rasbora 72–80°
The green band is the temperature range both can live in.
456789Both: 7–7.5Nerite snail 7–8.5Harlequin rasbora 6–7.5
The green band is the pH both tolerate.

Size to scale

Nerite snail · 1 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

Nerite snailHarlequin rasbora
Temperature72–78 °F72–80 °F
pH7–8.56–7.5
Adult size1.0 in2.0 in
Minimum tank5 gal10 gal
TemperamentPeacefulPeaceful
Swims atBottomMiddle
GroupAlone or in pairsGroups of 6+
DietHerbivoreOmnivore

Better tank mates for nerite snails

All nerite snail tank mates

Better tank mates for harlequin rasboras

All harlequin rasbora tank mates

Questions

Can nerite snails live with harlequin rasboras?

Yes. Nerite snails and harlequin rasboras get along in the same tank. Both are fine at 72–78°F. Plan on at least 10 gal.

What temperature suits both nerite snails and harlequin rasboras?

72–78 °F. Nerite snails need 72–78 °F, harlequin rasboras need 72–80 °F.

What size tank do nerite snails and harlequin rasboras need together?

At least 10 gal, set by the harlequin rasbora. Add space for each extra fish.