Can rosy barbs live with zebra plecos?

Verdict
No

No. Rosy barbs and zebra plecos should not share a tank. No shared temperature. Rosy barbs need 64–77°F, zebra plecos need 79–88°F.

Rosy barbRosy barb64–77°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°Rosy barb 64–77°Zebra pleco 79–88°
The ranges do not meet, so one of them would always be too warm or too cold.
456789Both: 6–7.5Rosy barb 6–7.5Zebra pleco 6–7.5
The green band is the pH both tolerate.

Size to scale

Rosy barb · 4 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

Rosy barbZebra pleco
Temperature64–77 °F79–88 °F
pH6–7.56–7.5
Adult size4.0 in3.5 in
Minimum tank30 gal30 gal
TemperamentSemi-aggressivePeaceful
Swims atMiddleBottom
GroupGroups of 6+Alone or in pairs
DietOmnivoreCarnivore

Better tank mates for rosy barbs

All rosy barb tank mates

Better tank mates for zebra plecos

All zebra pleco tank mates

Questions

Can rosy barbs live with zebra plecos?

No. Rosy barbs and zebra plecos should not share a tank. No shared temperature. Rosy barbs need 64–77°F, zebra plecos need 79–88°F.

What temperature suits both rosy barbs and zebra plecos?

None. Rosy barbs need 64–77 °F and zebra plecos need 79–88 °F, so the ranges do not meet.

What size tank do rosy barbs and zebra plecos need together?

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