Can kuhli loaches live with blood parrots?

Verdict
Yes

Yes. Kuhli loaches and blood parrots get along in the same tank. Both are fine at 76–80°F. Plan on at least 55 gal.

Kuhli loachKuhli loach75–86°F · pH 5.5–7 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°Kuhli loach 75–86°Blood parrot 76–80°
The green band is the temperature range both can live in.
456789Both: 6.5–7Kuhli loach 5.5–7Blood parrot 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Kuhli loach · 3.5 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

Kuhli loachBlood parrot
Temperature75–86 °F76–80 °F
pH5.5–76.5–7.5
Adult size3.5 in8.0 in
Minimum tank20 gal55 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomMiddle
GroupGroups of 6+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for kuhli loaches

All kuhli loach tank mates

Better tank mates for blood parrots

All blood parrot tank mates

Questions

Can kuhli loaches live with blood parrots?

Yes. Kuhli loaches and blood parrots get along in the same tank. Both are fine at 76–80°F. Plan on at least 55 gal.

What temperature suits both kuhli loaches and blood parrots?

76–80 °F. Kuhli loaches need 75–86 °F, blood parrots need 76–80 °F.

What size tank do kuhli loaches and blood parrots need together?

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