Can neon tetras live with electric blue acaras?

Verdict
Yes, with care

Yes, with care. Neon tetras and electric blue acaras can share a tank, but watch one thing. A grown electric blue acara may treat small neon tetras as food, especially at night.

Neon tetraNeon tetra72–79°F · pH 6–7 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: 72–79°Neon tetra 72–79°Electric blue acara 72–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7Neon tetra 6–7Electric blue acara 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Neon tetra · 1.5 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

Neon tetraElectric blue acara
Temperature72–79 °F72–82 °F
pH6–76.5–7.5
Adult size1.5 in6.0 in
Minimum tank10 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleMiddle
GroupGroups of 6+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for neon tetras

All neon tetra tank mates

Better tank mates for electric blue acaras

All electric blue acara tank mates

Questions

Can neon tetras live with electric blue acaras?

Yes, with care. Neon tetras and electric blue acaras can share a tank, but watch one thing. A grown electric blue acara may treat small neon tetras as food, especially at night.

What temperature suits both neon tetras and electric blue acaras?

72–79 °F. Neon tetras need 72–79 °F, electric blue acaras need 72–82 °F.

What size tank do neon tetras and electric blue acaras need together?

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