Can guppies live with silver dollars?

Verdict

Yes, with care

Yes, with care. Guppies and silver dollars can share a tank, but watch one thing. Silver dollars grow to 6 inches and need 75 gallons, far more than a tank set up for guppies.

Guppy72–82°F · pH 6.8–7.8

Silver dollar75–82°F · pH 5–7

What to watch

Watch outSilver dollars grow to 6 inches and need 75 gallons, far more than a tank set up for guppies.

What works

Both are fine at 75–82°F.
pH 6.8–7 suits both.
They use different parts of the tank: guppies the top, silver dollars 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

	Guppy	Silver dollar
Temperature	72–82 °F	75–82 °F
pH	6.8–7.8	5–7
Adult size	2.0 in	6.0 in
Minimum tank	10 gal	75 gal
Temperament	Peaceful	Peaceful
Swims at	Top	Middle
Group	Groups of 3+	Groups of 5+
Diet	Omnivore	Herbivore

Better tank mates for guppies

All guppy tank mates

Better tank mates for silver dollars

All silver dollar tank mates

Questions

Can guppies live with silver dollars?

Yes, with care. Guppies and silver dollars can share a tank, but watch one thing. Silver dollars grow to 6 inches and need 75 gallons, far more than a tank set up for guppies.

What temperature suits both guppies and silver dollars?

75–82 °F. Guppies need 72–82 °F, silver dollars need 75–82 °F.

What size tank do guppies and silver dollars need together?

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