Can corydoras live with red tail sharks?

Verdict
Yes, with care

Yes, with care. Corydoras and red tail sharks can share a tank, but watch one thing. Red tail sharks chase other bottom fish out of their patch.

CorydorasCorydoras72–79°F · pH 6–7.8 Red tail sharkRed tail shark72–79°F · pH 6.5–7.5

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–79°Corydoras 72–79°Red tail shark 72–79°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Corydoras 6–7.8Red tail shark 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Corydoras · 2.5 inRed tail shark · 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

CorydorasRed tail shark
Temperature72–79 °F72–79 °F
pH6–7.86.5–7.5
Adult size2.5 in5.0 in
Minimum tank20 gal55 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomBottom
GroupGroups of 6+One per tank
DietOmnivoreOmnivore

Better tank mates for corydoras

All corydoras tank mates

Better tank mates for red tail sharks

All red tail shark tank mates

Questions

Can corydoras live with red tail sharks?

Yes, with care. Corydoras and red tail sharks can share a tank, but watch one thing. Red tail sharks chase other bottom fish out of their patch.

What temperature suits both corydoras and red tail sharks?

72–79 °F. Corydoras need 72–79 °F, red tail sharks need 72–79 °F.

What size tank do corydoras and red tail sharks need together?

At least 55 gal, set by the red tail shark. Add space for each extra fish.