Can blood parrots live with swordtails?

Verdict
Yes

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

Blood parrotBlood parrot76–80°F · pH 6.5–7.5 SwordtailSwordtail72–79°F · pH 7–8.3

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 76–79°Blood parrot 76–80°Swordtail 72–79°
The green band is the temperature range both can live in.
456789Both: 7–7.5Blood parrot 6.5–7.5Swordtail 7–8.3
The green band is the pH both tolerate.

Size to scale

Blood parrot · 8 inSwordtail · 5 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

Blood parrotSwordtail
Temperature76–80 °F72–79 °F
pH6.5–7.57–8.3
Adult size8.0 in5.0 in
Minimum tank55 gal30 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atMiddleMiddle
GroupAlone or in pairsGroups of 3+
DietOmnivoreOmnivore

Better tank mates for blood parrots

All blood parrot tank mates

Better tank mates for swordtails

All swordtail tank mates

Questions

Can blood parrots live with swordtails?

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

What temperature suits both blood parrots and swordtails?

76–79 °F. Blood parrots need 76–80 °F, swordtails need 72–79 °F.

What size tank do blood parrots and swordtails need together?

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