Can corydoras live with bichirs?

Verdict
No

No. Corydoras and bichirs should not share a tank. An adult bichir eats fish that fit in its mouth, and at 2.5 inches corydoras do.

CorydorasCorydoras72–79°F · pH 6–7.8 BichirBichir72–82°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°Bichir 72–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Corydoras 6–7.8Bichir 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Corydoras · 2.5 inBichir · 12 in0"2"4"6"8"10"12"
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

CorydorasBichir
Temperature72–79 °F72–82 °F
pH6–7.86.5–7.5
Adult size2.5 in12.0 in
Minimum tank20 gal75 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomBottom
GroupGroups of 6+Alone or in pairs
DietOmnivoreCarnivore

Better tank mates for corydoras

All corydoras tank mates

Better tank mates for bichirs

All bichir tank mates

Questions

Can corydoras live with bichirs?

No. Corydoras and bichirs should not share a tank. An adult bichir eats fish that fit in its mouth, and at 2.5 inches corydoras do.

What temperature suits both corydoras and bichirs?

72–79 °F. Corydoras need 72–79 °F, bichirs need 72–82 °F.

What size tank do corydoras and bichirs need together?

At least 75 gal, set by the bichir. Add space for each extra fish.