Can zebra danios live with electric blue acaras?

Verdict
Yes

Yes. Zebra danios and electric blue acaras make a good pair. Both are fine at 72–77°F. Plan on at least 30 gal.

Zebra danioZebra danio65–77°F · pH 6.5–8 Electric blue acaraElectric blue acara72–82°F · pH 6.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–77°Zebra danio 65–77°Electric blue acara 72–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Zebra danio 6.5–8Electric blue acara 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Zebra danio · 2 inElectric blue acara · 6 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

Zebra danioElectric blue acara
Temperature65–77 °F72–82 °F
pH6.5–86.5–7.5
Adult size2.0 in6.0 in
Minimum tank10 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atTopMiddle
GroupGroups of 6+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for zebra danios

All zebra danio tank mates

Better tank mates for electric blue acaras

All electric blue acara tank mates

Questions

Can zebra danios live with electric blue acaras?

Yes. Zebra danios and electric blue acaras make a good pair. Both are fine at 72–77°F. Plan on at least 30 gal.

What temperature suits both zebra danios and electric blue acaras?

72–77 °F. Zebra danios need 65–77 °F, electric blue acaras need 72–82 °F.

What size tank do zebra danios and electric blue acaras need together?

At least 30 gal, set by the electric blue acara. Add space for each extra fish.