Can oscars live with blood parrots?

Verdict
Yes

Yes. Oscars and blood parrots make a good pair. Both are fine at 76–80°F. Plan on at least 75 gal.

OscarOscar74–81°F · pH 6–8 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: 76–80°Oscar 74–81°Blood parrot 76–80°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Oscar 6–8Blood parrot 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Oscar · 12 inBlood parrot · 8 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

OscarBlood parrot
Temperature74–81 °F76–80 °F
pH6–86.5–7.5
Adult size12.0 in8.0 in
Minimum tank75 gal55 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atMiddleMiddle
GroupAlone or in pairsAlone or in pairs
DietCarnivoreOmnivore

Better tank mates for oscars

All oscar tank mates

Better tank mates for blood parrots

All blood parrot tank mates

Questions

Can oscars live with blood parrots?

Yes. Oscars and blood parrots make a good pair. Both are fine at 76–80°F. Plan on at least 75 gal.

What temperature suits both oscars and blood parrots?

76–80 °F. Oscars need 74–81 °F, blood parrots need 76–80 °F.

What size tank do oscars and blood parrots need together?

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