Can silver dollars live with swordtails?

Verdict

Yes, with care

Yes, with care. Silver dollars and swordtails can share a tank, but watch one thing. Water chemistry is a squeeze. The only pH that suits both is around 7.

Silver dollar75–82°F · pH 5–7

Swordtail72–79°F · pH 7–8.3

What to watch

Watch outWater chemistry is a squeeze. The only pH that suits both is around 7.

What works

Both are fine at 75–79°F.

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

	Silver dollar	Swordtail
Temperature	75–82 °F	72–79 °F
pH	5–7	7–8.3
Adult size	6.0 in	5.0 in
Minimum tank	75 gal	30 gal
Temperament	Peaceful	Semi-aggressive
Swims at	Middle	Middle
Group	Groups of 5+	Groups of 3+
Diet	Herbivore	Omnivore

Better tank mates for silver dollars

All silver dollar tank mates

Better tank mates for swordtails

All swordtail tank mates

Questions

Can silver dollars live with swordtails?

Yes, with care. Silver dollars and swordtails can share a tank, but watch one thing. Water chemistry is a squeeze. The only pH that suits both is around 7.

What temperature suits both silver dollars and swordtails?

75–79 °F. Silver dollars need 75–82 °F, swordtails need 72–79 °F.

What size tank do silver dollars and swordtails need together?

At least 75 gal, set by the silver dollar. Add space for each extra fish.