Can jack dempseys live with electric blue acaras?

Verdict
No

No. Jack dempseys and electric blue acaras should not share a tank. Jack dempseys are aggressive and much bigger than electric blue acaras.

Jack DempseyJack Dempsey72–86°F · pH 6.5–7.5 Electric blue acaraElectric blue acara72–82°F · pH 6.5–7.5

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–82°Jack Dempsey 72–86°Electric blue acara 72–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Jack Dempsey 6.5–7.5Electric blue acara 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Jack Dempsey · 10 inElectric blue acara · 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 DempseyElectric blue acara
Temperature72–86 °F72–82 °F
pH6.5–7.56.5–7.5
Adult size10.0 in6.0 in
Minimum tank55 gal30 gal
TemperamentAggressiveSemi-aggressive
Swims atMiddleMiddle
GroupAlone or in pairsAlone or in pairs
DietCarnivoreOmnivore

Better tank mates for jack dempseys

All jack dempsey tank mates

Better tank mates for electric blue acaras

All electric blue acara tank mates

Questions

Can jack dempseys live with electric blue acaras?

No. Jack dempseys and electric blue acaras should not share a tank. Jack dempseys are aggressive and much bigger than electric blue acaras.

What temperature suits both jack dempseys and electric blue acaras?

72–82 °F. Jack dempseys need 72–86 °F, electric blue acaras need 72–82 °F.

What size tank do jack dempseys and electric blue acaras need together?

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