Can peacock cichlids live with rosy barbs?

Verdict
Yes, with care

Yes, with care. Peacock cichlids and rosy barbs can share a tank, but watch one thing. They only share 76–77°F. Keep the heater set there and steady.

Peacock cichlidPeacock cichlid76–82°F · pH 7.8–8.6 Rosy barbRosy barb64–77°F · pH 6–7.5

What to watch

Water side by side

55°60°65°70°75°80°85°90°Both: 76–77°Peacock cichlid 76–82°Rosy barb 64–77°
The green band is the temperature range both can live in.
456789Peacock cichlid 7.8–8.6Rosy barb 6–7.5
No pH suits both. One would live in the wrong water all the time.

Size to scale

Peacock cichlid · 6 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

Peacock cichlidRosy barb
Temperature76–82 °F64–77 °F
pH7.8–8.66–7.5
Adult size6.0 in4.0 in
Minimum tank55 gal30 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atMiddleMiddle
GroupGroups of 4+Groups of 6+
DietCarnivoreOmnivore

Better tank mates for peacock cichlids

All peacock cichlid tank mates

Better tank mates for rosy barbs

All rosy barb tank mates

Questions

Can peacock cichlids live with rosy barbs?

Yes, with care. Peacock cichlids and rosy barbs can share a tank, but watch one thing. They only share 76–77°F. Keep the heater set there and steady.

What temperature suits both peacock cichlids and rosy barbs?

76–77 °F. Peacock cichlids need 76–82 °F, rosy barbs need 64–77 °F.

What size tank do peacock cichlids and rosy barbs need together?

At least 55 gal, set by the peacock cichlid. Add space for each extra fish.