Can yellow labs live with electric blue acaras?

Verdict
Yes, with care

Yes, with care. Yellow labs and electric blue acaras can share a tank, but watch one thing. Different water: yellow labs want pH 7.8–8.6, electric blue acaras want pH 6.5–7.5.

Electric yellow cichlidElectric yellow cichlid75–82°F · pH 7.8–8.6 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: 75–82°Electric yellow cichlid 75–82°Electric blue acara 72–82°
The green band is the temperature range both can live in.
456789Electric yellow cichlid 7.8–8.6Electric blue acara 6.5–7.5
No pH suits both. One would live in the wrong water all the time.

Size to scale

Electric yellow cichlid · 4 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

Electric yellow cichlidElectric blue acara
Temperature75–82 °F72–82 °F
pH7.8–8.66.5–7.5
Adult size4.0 in6.0 in
Minimum tank40 gal30 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atAll levelsMiddle
GroupGroups of 4+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for yellow labs

All electric yellow cichlid tank mates

Better tank mates for electric blue acaras

All electric blue acara tank mates

Questions

Can yellow labs live with electric blue acaras?

Yes, with care. Yellow labs and electric blue acaras can share a tank, but watch one thing. Different water: yellow labs want pH 7.8–8.6, electric blue acaras want pH 6.5–7.5.

What temperature suits both yellow labs and electric blue acaras?

75–82 °F. Yellow labs need 75–82 °F, electric blue acaras need 72–82 °F.

What size tank do yellow labs and electric blue acaras need together?

At least 40 gal, set by the electric yellow cichlid. Add space for each extra fish.