Can harlequin rasboras live with zebra plecos?

Verdict
Yes, with care

Yes, with care. Harlequin rasboras and zebra plecos can share a tank, but watch one thing. They only share 79–80°F. Keep the heater set there and steady.

Harlequin rasboraHarlequin rasbora72–80°F · pH 6–7.5 Zebra plecoZebra pleco79–88°F · pH 6–7.5

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 79–80°Harlequin rasbora 72–80°Zebra pleco 79–88°
The green band is the temperature range both can live in.
456789Both: 6–7.5Harlequin rasbora 6–7.5Zebra pleco 6–7.5
The green band is the pH both tolerate.

Size to scale

Harlequin rasbora · 2 inZebra pleco · 3.5 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

Harlequin rasboraZebra pleco
Temperature72–80 °F79–88 °F
pH6–7.56–7.5
Adult size2.0 in3.5 in
Minimum tank10 gal30 gal
TemperamentPeacefulPeaceful
Swims atMiddleBottom
GroupGroups of 6+Alone or in pairs
DietOmnivoreCarnivore

Better tank mates for harlequin rasboras

All harlequin rasbora tank mates

Better tank mates for zebra plecos

All zebra pleco tank mates

Questions

Can harlequin rasboras live with zebra plecos?

Yes, with care. Harlequin rasboras and zebra plecos can share a tank, but watch one thing. They only share 79–80°F. Keep the heater set there and steady.

What temperature suits both harlequin rasboras and zebra plecos?

79–80 °F. Harlequin rasboras need 72–80 °F, zebra plecos need 79–88 °F.

What size tank do harlequin rasboras and zebra plecos need together?

At least 30 gal, set by the zebra pleco. Add space for each extra fish.