Can guppies live with discus?

Verdict
Yes, with care

Yes, with care. Guppies and discus can share a tank, but watch one thing. They only share 82°F. Keep the heater set there and steady.

GuppyGuppy72–82°F · pH 6.8–7.8 DiscusDiscus82–88°F · pH 5.5–7

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 82°Guppy 72–82°Discus 82–88°
The green band is the temperature range both can live in.
456789Both: 6.8–7Guppy 6.8–7.8Discus 5.5–7
The green band is the pH both tolerate.

Size to scale

Guppy · 2 inDiscus · 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

GuppyDiscus
Temperature72–82 °F82–88 °F
pH6.8–7.85.5–7
Adult size2.0 in6.0 in
Minimum tank10 gal55 gal
TemperamentPeacefulPeaceful
Swims atTopMiddle
GroupGroups of 3+Groups of 5+
DietOmnivoreCarnivore

Better tank mates for guppies

All guppy tank mates

Better tank mates for discus

All discus tank mates

Questions

Can guppies live with discus?

Yes, with care. Guppies and discus can share a tank, but watch one thing. They only share 82°F. Keep the heater set there and steady.

What temperature suits both guppies and discus?

82–82 °F. Guppies need 72–82 °F, discus need 82–88 °F.

What size tank do guppies and discus need together?

At least 55 gal, set by the discus. Add space for each extra fish.