Can jack dempseys live with peacock cichlids?

Verdict
No

No. Jack dempseys and peacock cichlids should not share a tank. Jack dempseys are aggressive and much bigger than peacock cichlids.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 76–82°Jack Dempsey 72–86°Peacock cichlid 76–82°
The green band is the temperature range both can live in.
456789Jack Dempsey 6.5–7.5Peacock cichlid 7.8–8.6
No pH suits both. One would live in the wrong water all the time.

Size to scale

Jack Dempsey · 10 inPeacock cichlid · 6 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 DempseyPeacock cichlid
Temperature72–86 °F76–82 °F
pH6.5–7.57.8–8.6
Adult size10.0 in6.0 in
Minimum tank55 gal55 gal
TemperamentAggressiveSemi-aggressive
Swims atMiddleMiddle
GroupAlone or in pairsGroups of 4+
DietCarnivoreCarnivore

Better tank mates for jack dempseys

All jack dempsey tank mates

Better tank mates for peacock cichlids

All peacock cichlid tank mates

Questions

Can jack dempseys live with peacock cichlids?

No. Jack dempseys and peacock cichlids should not share a tank. Jack dempseys are aggressive and much bigger than peacock cichlids.

What temperature suits both jack dempseys and peacock cichlids?

76–82 °F. Jack dempseys need 72–86 °F, peacock cichlids need 76–82 °F.

What size tank do jack dempseys and peacock cichlids need together?

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