Can severums live with yellow labs?

Verdict
No

No. Severums and yellow labs should not share a tank. Different water: severums want pH 6–7, yellow labs want pH 7.8–8.6.

SeverumSeverum74–84°F · pH 6–7 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: 75–82°Severum 74–84°Electric yellow cichlid 75–82°
The green band is the temperature range both can live in.
456789Severum 6–7Electric yellow cichlid 7.8–8.6
No pH suits both. One would live in the wrong water all the time.

Size to scale

Severum · 8 inElectric yellow cichlid · 4 in0"1"2"3"4"5"6"7"8"
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

SeverumElectric yellow cichlid
Temperature74–84 °F75–82 °F
pH6–77.8–8.6
Adult size8.0 in4.0 in
Minimum tank55 gal40 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atMiddleAll levels
GroupAlone or in pairsGroups of 4+
DietOmnivoreOmnivore

Better tank mates for severums

All severum tank mates

Better tank mates for yellow labs

All electric yellow cichlid tank mates

Questions

Can severums live with yellow labs?

No. Severums and yellow labs should not share a tank. Different water: severums want pH 6–7, yellow labs want pH 7.8–8.6.

What temperature suits both severums and yellow labs?

75–82 °F. Severums need 74–84 °F, yellow labs need 75–82 °F.

What size tank do severums and yellow labs need together?

At least 55 gal, set by the severum. Add space for each extra fish.