Can discus live with severums?

Verdict
Yes

Yes, discus and severums can live together. Both are fine at 82–84°F. Plan on at least 55 gal.

DiscusDiscus82–88°F · pH 5.5–7 SeverumSeverum74–84°F · pH 6–7

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 82–84°Discus 82–88°Severum 74–84°
The green band is the temperature range both can live in.
456789Both: 6–7Discus 5.5–7Severum 6–7
The green band is the pH both tolerate.

Size to scale

Discus · 6 inSeverum · 8 in0"1"2"3"4"5"6"7"8"
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

DiscusSeverum
Temperature82–88 °F74–84 °F
pH5.5–76–7
Adult size6.0 in8.0 in
Minimum tank55 gal55 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleMiddle
GroupGroups of 5+Alone or in pairs
DietCarnivoreOmnivore

Better tank mates for discus

All discus tank mates

Better tank mates for severums

All severum tank mates

Questions

Can discus live with severums?

Yes, discus and severums can live together. Both are fine at 82–84°F. Plan on at least 55 gal.

What temperature suits both discus and severums?

82–84 °F. Discus need 82–88 °F, severums need 74–84 °F.

What size tank do discus and severums need together?

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