Can corydoras live with severums?

Verdict
Yes

Yes. Corydoras and severums make a good pair. Both are fine at 74–79°F. Plan on at least 55 gal.

CorydorasCorydoras72–79°F · pH 6–7.8 SeverumSeverum74–84°F · pH 6–7

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 74–79°Corydoras 72–79°Severum 74–84°
The green band is the temperature range both can live in.
456789Both: 6–7Corydoras 6–7.8Severum 6–7
The green band is the pH both tolerate.

Size to scale

Corydoras · 2.5 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

CorydorasSeverum
Temperature72–79 °F74–84 °F
pH6–7.86–7
Adult size2.5 in8.0 in
Minimum tank20 gal55 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomMiddle
GroupGroups of 6+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for corydoras

All corydoras tank mates

Better tank mates for severums

All severum tank mates

Questions

Can corydoras live with severums?

Yes. Corydoras and severums make a good pair. Both are fine at 74–79°F. Plan on at least 55 gal.

What temperature suits both corydoras and severums?

74–79 °F. Corydoras need 72–79 °F, severums need 74–84 °F.

What size tank do corydoras and severums need together?

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