Can ember tetras live with yellow labs?

Verdict
No

No. Ember tetras and yellow labs should not share a tank. Different water: ember tetras want pH 5.5–7, yellow labs want pH 7.8–8.6.

Ember tetraEmber tetra73–84°F · pH 5.5–7 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: 75–82°Ember tetra 73–84°Electric yellow cichlid 75–82°
The green band is the temperature range both can live in.
456789Ember tetra 5.5–7Electric yellow cichlid 7.8–8.6
No pH suits both. One would live in the wrong water all the time.

Size to scale

Ember tetra · 0.8 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

Ember tetraElectric yellow cichlid
Temperature73–84 °F75–82 °F
pH5.5–77.8–8.6
Adult size0.8 in4.0 in
Minimum tank5 gal40 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleAll levels
GroupGroups of 6+Groups of 4+
DietOmnivoreOmnivore

Better tank mates for ember tetras

All ember tetra tank mates

Better tank mates for yellow labs

All electric yellow cichlid tank mates

Questions

Can ember tetras live with yellow labs?

No. Ember tetras and yellow labs should not share a tank. Different water: ember tetras want pH 5.5–7, yellow labs want pH 7.8–8.6.

What temperature suits both ember tetras and yellow labs?

75–82 °F. Ember tetras need 73–84 °F, yellow labs need 75–82 °F.

What size tank do ember tetras and yellow labs need together?

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