Can mollies live with electric blue acaras?

Verdict

Yes, with care

Yes, with care. Mollies and electric blue acaras can share a tank, but watch one thing. Water chemistry is a squeeze. The only pH that suits both is around 7.5.

Molly72–82°F · pH 7.5–8.5

Electric blue acara72–82°F · pH 6.5–7.5

What to watch

Watch outWater chemistry is a squeeze. The only pH that suits both is around 7.5.

What works

Both are fine at 72–82°F.
They use different parts of the tank: mollies the top, electric blue acaras the mid.

Water side by side

The green band is the temperature range both can live in.

The green band is the pH both tolerate.

Size to scale

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

	Molly	Electric blue acara
Temperature	72–82 °F	72–82 °F
pH	7.5–8.5	6.5–7.5
Adult size	4.0 in	6.0 in
Minimum tank	20 gal	30 gal
Temperament	Peaceful	Semi-aggressive
Swims at	Top	Middle
Group	Groups of 3+	Alone or in pairs
Diet	Omnivore	Omnivore

Better tank mates for mollies

All molly tank mates

Better tank mates for electric blue acaras

All electric blue acara tank mates

Questions

Can mollies live with electric blue acaras?

Yes, with care. Mollies and electric blue acaras can share a tank, but watch one thing. Water chemistry is a squeeze. The only pH that suits both is around 7.5.

What temperature suits both mollies and electric blue acaras?

72–82 °F. Mollies need 72–82 °F, electric blue acaras need 72–82 °F.

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

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