Can angelfish live with boesemani rainbowfish?

Verdict
Yes

Yes. Angelfish and boesemani rainbowfish make a good pair. Both are fine at 76–82°F. Plan on at least 30 gal.

AngelfishAngelfish76–84°F · pH 6–7.5 Boesemani rainbowfishBoesemani rainbowfish75–82°F · pH 7–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 76–82°Angelfish 76–84°Boesemani rainbowfish 75–82°
The green band is the temperature range both can live in.
456789Both: 7–7.5Angelfish 6–7.5Boesemani rainbowfish 7–8
The green band is the pH both tolerate.

Size to scale

Angelfish · 6 inBoesemani rainbowfish · 4 in0"1"2"3"4"5"6"
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

AngelfishBoesemani rainbowfish
Temperature76–84 °F75–82 °F
pH6–7.57–8
Adult size6.0 in4.0 in
Minimum tank30 gal30 gal
TemperamentSemi-aggressivePeaceful
Swims atMiddleMiddle
GroupAlone or in pairsGroups of 6+
DietOmnivoreOmnivore

Better tank mates for angelfish

All angelfish tank mates

Better tank mates for boesemani rainbowfish

All boesemani rainbowfish tank mates

Questions

Can angelfish live with boesemani rainbowfish?

Yes. Angelfish and boesemani rainbowfish make a good pair. Both are fine at 76–82°F. Plan on at least 30 gal.

What temperature suits both angelfish and boesemani rainbowfish?

76–82 °F. Angelfish need 76–84 °F, boesemani rainbowfish need 75–82 °F.

What size tank do angelfish and boesemani rainbowfish need together?

At least 30 gal, set by the angelfish. Add space for each extra fish.