Can swordtails live with endlers?

Verdict

Yes, with care

Yes, with care. Swordtails and endlers can share a tank, but watch one thing. At 5 inches a swordtail can swallow a small endler's livebearer. Fast, alert fish usually stay out of reach.

Swordtail72–79°F · pH 7–8.3

Endler's livebearer72–82°F · pH 7–8

What to watch

Watch outAt 5 inches a swordtail can swallow a small endler's livebearer. Fast, alert fish usually stay out of reach.

What works

Both are fine at 72–79°F.
pH 7–8 suits both.
They use different parts of the tank: swordtails the mid, endlers the top.

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

	Swordtail	Endler's livebearer
Temperature	72–79 °F	72–82 °F
pH	7–8.3	7–8
Adult size	5.0 in	1.0 in
Minimum tank	30 gal	5 gal
Temperament	Semi-aggressive	Peaceful
Swims at	Middle	Top
Group	Groups of 3+	Groups of 3+
Diet	Omnivore	Omnivore

Better tank mates for swordtails

All swordtail tank mates

Better tank mates for endlers

All endler's livebearer tank mates

Questions

Can swordtails live with endlers?

Yes, with care. Swordtails and endlers can share a tank, but watch one thing. At 5 inches a swordtail can swallow a small endler's livebearer. Fast, alert fish usually stay out of reach.

What temperature suits both swordtails and endlers?

72–79 °F. Swordtails need 72–79 °F, endlers need 72–82 °F.

What size tank do swordtails and endlers need together?

At least 30 gal, set by the swordtail. Add space for each extra fish.