Can discus live with rams?

Verdict
Yes

Yes. Discus and rams get along in the same tank. Both are fine at 82–86°F. Plan on at least 55 gal.

DiscusDiscus82–88°F · pH 5.5–7 German blue ramGerman blue ram80–86°F · pH 5–7

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 82–86°Discus 82–88°German blue ram 80–86°
The green band is the temperature range both can live in.
456789Both: 5.5–7Discus 5.5–7German blue ram 5–7
The green band is the pH both tolerate.

Size to scale

Discus · 6 inGerman blue ram · 2.5 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

DiscusGerman blue ram
Temperature82–88 °F80–86 °F
pH5.5–75–7
Adult size6.0 in2.5 in
Minimum tank55 gal20 gal
TemperamentPeacefulPeaceful
Swims atMiddleBottom
GroupGroups of 5+Alone or in pairs
DietCarnivoreOmnivore

Better tank mates for discus

All discus tank mates

Better tank mates for rams

All german blue ram tank mates

Questions

Can discus live with rams?

Yes. Discus and rams get along in the same tank. Both are fine at 82–86°F. Plan on at least 55 gal.

What temperature suits both discus and rams?

82–86 °F. Discus need 82–88 °F, rams need 80–86 °F.

What size tank do discus and rams need together?

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