Can apistogramma live with electric blue acaras?

Verdict
Yes

Yes. Apistogramma and electric blue acaras get along in the same tank. Both are fine at 75–82°F. Plan on at least 30 gal.

ApistogrammaApistogramma75–84°F · pH 5–7 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: 75–82°Apistogramma 75–84°Electric blue acara 72–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7Apistogramma 5–7Electric blue acara 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Apistogramma · 3 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

ApistogrammaElectric blue acara
Temperature75–84 °F72–82 °F
pH5–76.5–7.5
Adult size3.0 in6.0 in
Minimum tank20 gal30 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atBottomMiddle
GroupAlone or in pairsAlone or in pairs
DietCarnivoreOmnivore

Better tank mates for apistogramma

All apistogramma tank mates

Better tank mates for electric blue acaras

All electric blue acara tank mates

Questions

Can apistogramma live with electric blue acaras?

Yes. Apistogramma and electric blue acaras get along in the same tank. Both are fine at 75–82°F. Plan on at least 30 gal.

What temperature suits both apistogramma and electric blue acaras?

75–82 °F. Apistogramma need 75–84 °F, electric blue acaras need 72–82 °F.

What size tank do apistogramma and electric blue acaras need together?

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