Can angelfish live with red tail sharks?

Verdict
Yes

Yes. Angelfish and red tail sharks make a good pair. Both are fine at 76–79°F. Plan on at least 55 gal.

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 76–79°Angelfish 76–84°Red tail shark 72–79°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Angelfish 6–7.5Red tail shark 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Angelfish · 6 inRed tail shark · 5 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

AngelfishRed tail shark
Temperature76–84 °F72–79 °F
pH6–7.56.5–7.5
Adult size6.0 in5.0 in
Minimum tank30 gal55 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atMiddleBottom
GroupAlone or in pairsOne per tank
DietOmnivoreOmnivore

Better tank mates for angelfish

All angelfish tank mates

Better tank mates for red tail sharks

All red tail shark tank mates

Questions

Can angelfish live with red tail sharks?

Yes. Angelfish and red tail sharks make a good pair. Both are fine at 76–79°F. Plan on at least 55 gal.

What temperature suits both angelfish and red tail sharks?

76–79 °F. Angelfish need 76–84 °F, red tail sharks need 72–79 °F.

What size tank do angelfish and red tail sharks need together?

At least 55 gal, set by the red tail shark. Add space for each extra fish.