Can angelfish live with firemouth cichlids?

Verdict
Yes

Yes. Angelfish and firemouth cichlids make a good pair. Both are fine at 76–84°F. Plan on at least 30 gal.

AngelfishAngelfish76–84°F · pH 6–7.5 Firemouth cichlidFiremouth cichlid75–86°F · pH 6.5–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 76–84°Angelfish 76–84°Firemouth cichlid 75–86°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Angelfish 6–7.5Firemouth cichlid 6.5–8
The green band is the pH both tolerate.

Size to scale

Angelfish · 6 inFiremouth cichlid · 6 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

AngelfishFiremouth cichlid
Temperature76–84 °F75–86 °F
pH6–7.56.5–8
Adult size6.0 in6.0 in
Minimum tank30 gal30 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atMiddleBottom
GroupAlone or in pairsAlone or in pairs
DietOmnivoreOmnivore

Better tank mates for angelfish

All angelfish tank mates

Better tank mates for firemouth cichlids

All firemouth cichlid tank mates

Questions

Can angelfish live with firemouth cichlids?

Yes. Angelfish and firemouth cichlids make a good pair. Both are fine at 76–84°F. Plan on at least 30 gal.

What temperature suits both angelfish and firemouth cichlids?

76–84 °F. Angelfish need 76–84 °F, firemouth cichlids need 75–86 °F.

What size tank do angelfish and firemouth cichlids need together?

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