Can jack dempseys live with cherry barbs?

Verdict
No

No. Jack dempseys and cherry barbs should not share a tank. An adult jack dempsey eats fish that fit in its mouth, and at 2 inches cherry barbs do.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 73–81°Jack Dempsey 72–86°Cherry barb 73–81°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Jack Dempsey 6.5–7.5Cherry barb 6–7.5
The green band is the pH both tolerate.

Size to scale

Jack Dempsey · 10 inCherry barb · 2 in0"2"4"6"8"10"
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

Jack DempseyCherry barb
Temperature72–86 °F73–81 °F
pH6.5–7.56–7.5
Adult size10.0 in2.0 in
Minimum tank55 gal20 gal
TemperamentAggressivePeaceful
Swims atMiddleMiddle
GroupAlone or in pairsGroups of 6+
DietCarnivoreOmnivore

Better tank mates for jack dempseys

All jack dempsey tank mates

Better tank mates for cherry barbs

All cherry barb tank mates

Questions

Can jack dempseys live with cherry barbs?

No. Jack dempseys and cherry barbs should not share a tank. An adult jack dempsey eats fish that fit in its mouth, and at 2 inches cherry barbs do.

What temperature suits both jack dempseys and cherry barbs?

73–81 °F. Jack dempseys need 72–86 °F, cherry barbs need 73–81 °F.

What size tank do jack dempseys and cherry barbs need together?

At least 55 gal, set by the jack dempsey. Add space for each extra fish.