Can corydoras live with rams?

Verdict
No

No. Corydoras and rams should not share a tank. No shared temperature. Corydoras need 72–79°F, rams need 80–86°F.

CorydorasCorydoras72–79°F · pH 6–7.8 German blue ramGerman blue ram80–86°F · pH 5–7

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Corydoras 72–79°German blue ram 80–86°
The ranges do not meet, so one of them would always be too warm or too cold.
456789Both: 6–7Corydoras 6–7.8German blue ram 5–7
The green band is the pH both tolerate.

Size to scale

Corydoras · 2.5 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

CorydorasGerman blue ram
Temperature72–79 °F80–86 °F
pH6–7.85–7
Adult size2.5 in2.5 in
Minimum tank20 gal20 gal
TemperamentPeacefulPeaceful
Swims atBottomBottom
GroupGroups of 6+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for corydoras

All corydoras tank mates

Better tank mates for rams

All german blue ram tank mates

Questions

Can corydoras live with rams?

No. Corydoras and rams should not share a tank. No shared temperature. Corydoras need 72–79°F, rams need 80–86°F.

What temperature suits both corydoras and rams?

None. Corydoras need 72–79 °F and rams need 80–86 °F, so the ranges do not meet.

What size tank do corydoras and rams need together?

At least 20 gal, set by the corydoras. Add space for each extra fish.