Can flowerhorns live with yellow labs?

Verdict
No

No. Flowerhorns and yellow labs should not share a tank. An adult flowerhorn eats fish that fit in its mouth, and at 4 inches yellow labs do.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 80–82°Flowerhorn 80–89°Electric yellow cichlid 75–82°
The green band is the temperature range both can live in.
456789Both: 7.8–8Flowerhorn 7–8Electric yellow cichlid 7.8–8.6
The green band is the pH both tolerate.

Size to scale

Flowerhorn · 12 inElectric yellow cichlid · 4 in0"2"4"6"8"10"12"
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

FlowerhornElectric yellow cichlid
Temperature80–89 °F75–82 °F
pH7–87.8–8.6
Adult size12.0 in4.0 in
Minimum tank75 gal40 gal
TemperamentAggressiveSemi-aggressive
Swims atMiddleAll levels
GroupOne per tankGroups of 4+
DietCarnivoreOmnivore

Better tank mates for yellow labs

All electric yellow cichlid tank mates

Questions

Can flowerhorns live with yellow labs?

No. Flowerhorns and yellow labs should not share a tank. An adult flowerhorn eats fish that fit in its mouth, and at 4 inches yellow labs do.

What temperature suits both flowerhorns and yellow labs?

80–82 °F. Flowerhorns need 80–89 °F, yellow labs need 75–82 °F.

What size tank do flowerhorns and yellow labs need together?

At least 75 gal, set by the flowerhorn. Add space for each extra fish.