Can rams live with yellow labs?

Verdict
No

No. Rams and yellow labs should not share a tank. Different water: rams want pH 5–7, yellow labs want pH 7.8–8.6.

German blue ramGerman blue ram80–86°F · pH 5–7 Electric yellow cichlidElectric yellow cichlid75–82°F · pH 7.8–8.6

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 80–82°German blue ram 80–86°Electric yellow cichlid 75–82°
The green band is the temperature range both can live in.
456789German blue ram 5–7Electric yellow cichlid 7.8–8.6
No pH suits both. One would live in the wrong water all the time.

Size to scale

German blue ram · 2.5 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

German blue ramElectric yellow cichlid
Temperature80–86 °F75–82 °F
pH5–77.8–8.6
Adult size2.5 in4.0 in
Minimum tank20 gal40 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomAll levels
GroupAlone or in pairsGroups of 4+
DietOmnivoreOmnivore

Better tank mates for rams

All german blue ram tank mates

Better tank mates for yellow labs

All electric yellow cichlid tank mates

Questions

Can rams live with yellow labs?

No. Rams and yellow labs should not share a tank. Different water: rams want pH 5–7, yellow labs want pH 7.8–8.6.

What temperature suits both rams and yellow labs?

80–82 °F. Rams need 80–86 °F, yellow labs need 75–82 °F.

What size tank do rams and yellow labs need together?

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