Can goldfish live with firemouth cichlids?

Verdict
No

No. Goldfish and firemouth cichlids should not share a tank. Goldfish are coldwater animals (60–74°F); firemouth cichlids need 75–86°F. No temperature suits both.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Goldfish 60–74°Firemouth cichlid 75–86°
The ranges do not meet, so one of them would always be too warm or too cold.
456789Both: 7–8Goldfish 7–8Firemouth cichlid 6.5–8
The green band is the pH both tolerate.

Size to scale

Goldfish · 10 inFiremouth cichlid · 6 in0"2"4"6"8"10"
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

GoldfishFiremouth cichlid
Temperature60–74 °F75–86 °F
pH7–86.5–8
Adult size10.0 in6.0 in
Minimum tank40 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atAll levelsBottom
GroupAlone or in pairsAlone or in pairs
DietOmnivoreOmnivore

Better tank mates for goldfish

All goldfish tank mates

Better tank mates for firemouth cichlids

All firemouth cichlid tank mates

Questions

Can goldfish live with firemouth cichlids?

No. Goldfish and firemouth cichlids should not share a tank. Goldfish are coldwater animals (60–74°F); firemouth cichlids need 75–86°F. No temperature suits both.

What temperature suits both goldfish and firemouth cichlids?

None. Goldfish need 60–74 °F and firemouth cichlids need 75–86 °F, so the ranges do not meet.

What size tank do goldfish and firemouth cichlids need together?

At least 40 gal, set by the goldfish. Add space for each extra fish.