Can firemouth cichlids live with yellow labs?

Verdict
Yes

Yes, firemouth cichlids and yellow labs can live together. Both are fine at 75–82°F. Plan on at least 40 gal.

Firemouth cichlidFiremouth cichlid75–86°F · pH 6.5–8 Electric yellow cichlidElectric yellow cichlid75–82°F · pH 7.8–8.6

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–82°Firemouth cichlid 75–86°Electric yellow cichlid 75–82°
The green band is the temperature range both can live in.
456789Both: 7.8–8Firemouth cichlid 6.5–8Electric yellow cichlid 7.8–8.6
The green band is the pH both tolerate.

Size to scale

Firemouth cichlid · 6 inElectric yellow cichlid · 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

Firemouth cichlidElectric yellow cichlid
Temperature75–86 °F75–82 °F
pH6.5–87.8–8.6
Adult size6.0 in4.0 in
Minimum tank30 gal40 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atBottomAll levels
GroupAlone or in pairsGroups of 4+
DietOmnivoreOmnivore

Better tank mates for firemouth cichlids

All firemouth cichlid tank mates

Better tank mates for yellow labs

All electric yellow cichlid tank mates

Questions

Can firemouth cichlids live with yellow labs?

Yes, firemouth cichlids and yellow labs can live together. Both are fine at 75–82°F. Plan on at least 40 gal.

What temperature suits both firemouth cichlids and yellow labs?

75–82 °F. Firemouth cichlids need 75–86 °F, yellow labs need 75–82 °F.

What size tank do firemouth cichlids and yellow labs need together?

At least 40 gal, set by the electric yellow cichlid. Add space for each extra fish.