Can corydoras live with blood parrots?

Verdict
Yes

Yes. Corydoras and blood parrots make a good pair. Both are fine at 76–79°F. Plan on at least 55 gal.

CorydorasCorydoras72–79°F · pH 6–7.8 Blood parrotBlood parrot76–80°F · pH 6.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 76–79°Corydoras 72–79°Blood parrot 76–80°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Corydoras 6–7.8Blood parrot 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Corydoras · 2.5 inBlood parrot · 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

CorydorasBlood parrot
Temperature72–79 °F76–80 °F
pH6–7.86.5–7.5
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 blood parrots

All blood parrot tank mates

Questions

Can corydoras live with blood parrots?

Yes. Corydoras and blood parrots make a good pair. Both are fine at 76–79°F. Plan on at least 55 gal.

What temperature suits both corydoras and blood parrots?

76–79 °F. Corydoras need 72–79 °F, blood parrots need 76–80 °F.

What size tank do corydoras and blood parrots need together?

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